The following table shows combined cycles 2, 3, and 4 payments as a percentage of total cyclical payments, by trust fund. The percentages for the amount of payments are shown in a graph.
| Month | Number of payments | Amount of payments | ||
|---|---|---|---|---|
| OASI | DI | OASI | DI | |
| Jun 1997 | 0.035% | 0.003% | 0.033% | 0.003% |
| Jul 1997 | 0.145% | 0.027% | 0.138% | 0.036% |
| Aug 1997 | 0.309% | 0.096% | 0.298% | 0.127% |
| Sep 1997 | 0.547% | 0.228% | 0.530% | 0.298% |
| Oct 1997 | 0.841% | 0.422% | 0.814% | 0.540% |
| Nov 1997 | 1.130% | 0.681% | 1.095% | 0.866% |
| Dec 1997 | 1.406% | 1.005% | 1.353% | 1.266% |
| Jan 1998 | 1.656% | 1.305% | 1.603% | 1.642% |
| Feb 1998 | 2.147% | 1.613% | 2.138% | 2.022% |
| Mar 1998 | 2.501% | 1.944% | 2.497% | 2.423% |
| Apr 1998 | 2.843% | 2.324% | 2.837% | 2.885% |
| May 1998 | 3.170% | 2.675% | 3.158% | 3.300% |
| Jun 1998 | 3.489% | 3.000% | 3.492% | 3.823% |
| Jul 1998 | 3.794% | 3.369% | 3.803% | 4.269% |
| Aug 1998 | 4.133% | 3.785% | 4.157% | 4.788% |
| Sep 1998 | 4.464% | 4.210% | 4.490% | 5.338% |
| Oct 1998 | 4.791% | 4.666% | 4.822% | 5.945% |
| Nov 1998 | 5.086% | 5.019% | 5.118% | 6.363% |
| Dec 1998 | 5.374% | 5.447% | 5.498% | 6.941% |
| Jan 1999 | 5.642% | 5.802% | 5.681% | 7.319% |
| Feb 1999 | 5.992% | 6.234% | 6.073% | 7.875% |
| Mar 1999 | 6.380% | 6.618% | 6.484% | 8.344% |
| Apr 1999 | 6.743% | 7.042% | 6.851% | 8.811% |
| May 1999 | 7.120% | 7.510% | 7.244% | 9.439% |
| Jun 1999 | 7.458% | 7.930% | 7.591% | 9.965% |
| Jul 1999 | 7.782% | 8.304% | 7.934% | 10.275% |
| Aug 1999 | 8.164% | 8.877% | 8.343% | 11.072% |
| Sep 1999 | 8.500% | 9.392% | 8.677% | 11.737% |
| Oct 1999 | 8.796% | 9.813% | 9.000% | 12.168% |
| Nov 1999 | 9.145% | 10.279% | 9.356% | 12.895% |
| Dec 1999 | 9.434% | 10.625% | 9.805% | 13.158% |
| Jan 2000 | 9.734% | 11.015% | 9.981% | 13.646% |
| Feb 2000 | 10.049% | 11.476% | 10.333% | 14.335% |
| Mar 2000 | 10.464% | 11.837% | 10.775% | 14.708% |
| Apr 2000 | 10.858% | 12.268% | 11.184% | 15.217% |
| May 2000 | 11.296% | 12.703% | 11.505% | 15.828% |
| Jun 2000 | 12.267% | 13.107% | 12.954% | 16.258% |
| Jul 2000 | 12.673% | 13.519% | 13.401% | 16.708% |
| Aug 2000 | 13.067% | 13.852% | 13.838% | 17.081% |
| Sep 2000 | 13.448% | 14.276% | 14.414% | 17.637% |
| Oct 2000 | 13.804% | 14.725% | 14.639% | 18.257% |
| Nov 2000 | 14.131% | 15.009% | 14.977% | 18.455% |
| Dec 2000 | 14.426% | 15.306% | 15.301% | 18.623% |
| Jan 2001 | 14.786% | 15.745% | 15.687% | 19.551% |
| Feb 2001 | 15.263% | 16.079% | 16.241% | 19.905% |
| Mar 2001 | 15.643% | 16.401% | 16.644% | 20.326% |
| Apr 2001 | 16.017% | 16.878% | 17.028% | 20.981% |
| May 2001 | 16.397% | 17.209% | 17.433% | 21.387% |
| Jun 2001 | 16.695% | 17.481% | 17.723% | 21.560% |
| Jul 2001 | 17.024% | 17.873% | 18.060% | 22.054% |
| Aug 2001 | 17.358% | 18.296% | 18.418% | 22.721% |
| Sep 2001 | 17.637% | 18.536% | 18.690% | 22.802% |
| Oct 2001 | 17.823% | 18.905% | 19.059% | 23.420% |
| Nov 2001 | 18.235% | 19.129% | 19.346% | 23.416% |
| Dec 2001 | 18.563% | 19.452% | 20.032% | 23.706% |
| Jan 2002 | 18.919% | 19.940% | 20.093% | 24.898% |
| Feb 2002 | 19.328% | 20.165% | 20.587% | 24.926% |
| Mar 2002 | 19.700% | 20.506% | 20.980% | 25.329% |
| Apr 2002 | 20.118% | 20.833% | 21.426% | 25.953% |
| May 2002 | 20.485% | 21.149% | 21.841% | 26.349% |
| Jun 2002 | 20.795% | 21.417% | 22.131% | 26.534% |
| Jul 2002 | 21.127% | 21.705% | 22.465% | 27.233% |
| Aug 2002 | 21.419% | 21.991% | 22.798% | 27.247% |
| Sep 2002 | 21.718% | 22.294% | 23.102% | 27.484% |
| Oct 2002 | 22.055% | 22.664% | 23.470% | 28.274% |
| Nov 2002 | 22.332% | 22.832% | 23.758% | 28.736% |
| Dec 2002 | 22.653% | 23.157% | 24.539% | 28.644% |
| Jan 2003 | 22.940% | 23.426% | 24.480% | 29.258% |
| Feb 2003 | 23.305% | 23.590% | 24.900% | 29.137% |
| Mar 2003 | 23.663% | 23.783% | 25.253% | 29.532% |
| Apr 2003 | 24.014% | 24.086% | 25.639% | 29.802% |
| May 2003 | 24.384% | 24.405% | 26.054% | 30.283% |
| Jun 2003 | 24.698% | 24.630% | 26.361% | 30.722% |
| Jul 2003 | 25.024% | 24.944% | 26.701% | 31.232% |
| Aug 2003 | 25.270% | 25.020% | 26.960% | 30.753% |
| Sep 2003 | 25.609% | 25.353% | 27.316% | 31.581% |
| Oct 2003 | 25.937% | 25.606% | 27.665% | 32.080% |
| Nov 2003 | 26.235% | 25.850% | 27.985% | 32.419% |
| Dec 2003 | 26.520% | 25.974% | 28.745% | 32.329% |
| Jan 2004 | 26.776% | 26.107% | 28.671% | 32.751% |
| Feb 2004 | 27.249% | 26.389% | 29.207% | 33.148% |
| Mar 2004 | 27.632% | 26.502% | 29.634% | 33.510% |
| Apr 2004 | 27.888% | 26.552% | 29.888% | 32.816% |
| May 2004 | 28.246% | 26.813% | 30.280% | 33.491% |
| Jun 2004 | 28.590% | 27.084% | 30.612% | 34.181% |
| Jul 2004 | 28.815% | 27.166% | 30.848% | 33.912% |
| Aug 2004 | 29.128% | 27.295% | 31.174% | 33.976% |
| Sep 2004 | 29.424% | 27.571% | 31.490% | 34.700% |
| Oct 2004 | 29.697% | 27.631% | 31.759% | 34.398% |
| Nov 2004 | 30.014% | 27.847% | 32.100% | 35.064% |
| Dec 2004 | 30.314% | 27.961% | 32.860% | 34.816% |
| Jan 2005 | 30.593% | 28.099% | 32.829% | 35.258% |
| Feb 2005 | 31.097% | 28.304% | 33.415% | 35.613% |
| Mar 2005 | 31.478% | 28.383% | 33.817% | 35.706% |
| Apr 2005 | 31.848% | 28.599% | 34.188% | 35.118% |
| May 2005 | 32.161% | 28.623% | 34.562% | 35.829% |
| Jun 2005 | 32.479% | 28.819% | 34.845% | 36.392% |
| Jul 2005 | 32.735% | 28.986% | 35.097% | 36.429% |
| Aug 2005 | 33.041% | 29.189% | 35.415% | 36.955% |
| Sep 2005 | 33.229% | 28.694% | 35.628% | 36.712% |
| Oct 2005 | 33.514% | 28.821% | 35.922% | 36.722% |
| Nov 2005 | 33.777% | 28.907% | 36.212% | 36.832% |
| Dec 2005 | 34.032% | 28.930% | 36.921% | 36.599% |
| Jan 2006 | 34.319% | 29.041% | 36.867% | 37.160% |
| Feb 2006 | 34.830% | 29.679% | 37.479% | 37.699% |
| Mar 2006 | 35.174% | 29.310% | 37.852% | 37.650% |
| Apr 2006 | 35.475% | 29.224% | 38.170% | 37.464% |
| May 2006 | 35.804% | 29.306% | 38.554% | 37.830% |
| Jun 2006 | 35.894% | 29.863% | 38.754% | 37.867% |
| Jul 2006 | 36.282% | 29.363% | 39.039% | 37.487% |
| Aug 2006 | 36.583% | 29.582% | 39.333% | 38.278% |
| Sep 2006 | 36.755% | 29.591% | 39.473% | 37.742% |
| Oct 2006 | 37.022% | 29.670% | 39.779% | 38.067% |
| Nov 2006 | 37.238% | 29.685% | 40.018% | 37.999% |
| Dec 2006 | 37.517% | 29.729% | 40.721% | 37.789% |
| Jan 2007 | 37.820% | 29.847% | 40.666% | 38.608% |
| Feb 2007 | 38.290% | 29.919% | 41.216% | 38.581% |
| Mar 2007 | 38.606% | 29.923% | 41.565% | 38.608% |
| Apr 2007 | 38.953% | 30.012% | 41.934% | 38.886% |
| May 2007 | 39.273% | 30.134% | 42.302% | 39.124% |
| Jun 2007 | 39.484% | 30.071% | 42.483% | 38.635% |
| Jul 2007 | 39.751% | 30.157% | 42.766% | 38.939% |
| Aug 2007 | 40.013% | 30.268% | 43.064% | 39.313% |
| Sep 2007 | 40.142% | 30.054% | 43.140% | 37.792% |
| Oct 2007 | 40.452% | 30.356% | 43.489% | 39.539% |
| Nov 2007 | 40.554% | 30.243% | 43.613% | 38.544% |
| Dec 2007 | 40.801% | 30.239% | 44.223% | 38.088% |
| Jan 2008 | 41.168% | 30.478% | 44.271% | 39.663% |
| Feb 2008 | 41.586% | 30.468% | 44.769% | 39.221% |
| Mar 2008 | 41.936% | 30.498% | 45.142% | 39.368% |
| Apr 2008 | 42.263% | 30.551% | 45.491% | 39.508% |
| May 2008 | 42.597% | 30.646% | 45.855% | 39.676% |
| Jun 2008 | 42.862% | 30.688% | 46.128% | 39.909% |
| Jul 2008 | 43.126% | 30.780% | 46.397% | 40.173% |
| Aug 2008 | 43.316% | 30.725% | 46.604% | 39.647% |
| Sep 2008 | 43.588% | 30.799% | 46.924% | 39.942% |
| Oct 2008 | 43.845% | 30.900% | 47.162% | 40.230% |
| Nov 2008 | 44.074% | 30.901% | 47.418% | 40.105% |
| Dec 2008 | 44.296% | 30.952% | 48.093% | 40.101% |
| Jan 2009 | 44.515% | 31.002% | 47.925% | 40.375% |
| Feb 2009 | 45.009% | 31.056% | 48.503% | 40.439% |
| Mar 2009 | 45.349% | 31.081% | 48.867% | 40.438% |
| Apr 2009 | 45.645% | 31.049% | 49.176% | 39.781% |
| May 2009 | 45.996% | 31.175% | 49.575% | 40.376% |
| Jun 2009 | 46.328% | 31.298% | 49.915% | 41.120% |
| Jul 2009 | 46.671% | 31.201% | 50.233% | 40.750% |
| Aug 2009 | 46.866% | 31.369% | 50.460% | 40.734% |
| Sep 2009 | 47.160% | 31.456% | 50.777% | 41.153% |
| Oct 2009 | 47.397% | 31.435% | 51.040% | 40.910% |
| Nov 2009 | 47.593% | 31.513% | 51.238% | 41.313% |
| Dec 2009 | 47.892% | 31.509% | 51.951% | 40.870% |
| Jan 2010 | 48.091% | 31.693% | 51.802% | 40.966% |
| Feb 2010 | 48.552% | 31.639% | 52.322% | 41.603% |
| Mar 2010 | 48.862% | 31.659% | 52.653% | 41.546% |
| Apr 2010 | 49.043% | 31.531% | 52.817% | 40.454% |
| May 2010 | 49.509% | 31.899% | 53.363% | 42.605% |
| Jun 2010 | 49.769% | 31.953% | 53.608% | 42.692% |
| Jul 2010 | 50.003% | 31.979% | 53.854% | 42.726% |
| Aug 2010 | 50.234% | 31.988% | 54.110% | 42.777% |
| Sep 2010 | 50.478% | 32.020% | 54.372% | 42.838% |
| Oct 2010 | 50.676% | 32.038% | 54.575% | 42.892% |
| Nov 2010 | 50.907% | 32.038% | 54.830% | 42.921% |
| Dec 2010 | 51.143% | 32.085% | 55.408% | 42.806% |
| Jan 2011 | 51.351% | 32.121% | 55.322% | 43.030% |
| Feb 2011 | 51.721% | 32.119% | 55.757% | 43.070% |
| Mar 2011 | 52.006% | 32.183% | 56.054% | 43.135% |
| Apr 2011 | 52.247% | 32.200% | 56.306% | 43.166% |
| May 2011 | 52.520% | 32.252% | 56.620% | 43.211% |
| Jun 2011 | 52.748% | 32.270% | 56.830% | 43.276% |
| Jul 2011 | 52.946% | 32.303% | 57.037% | 43.316% |
| Aug 2011 | 53.183% | 32.339% | 57.292% | 43.377% |
| Sep 2011 | 53.372% | 32.357% | 57.476% | 43.404% |
| Oct 2011 | 53.587% | 32.393% | 57.705% | 43.451% |
| Nov 2011 | 53.789% | 32.381% | 57.919% | 43.460% |
| Dec 2011 | 53.970% | 32.377% | 58.406% | 43.322% |
| Jan 2012 | 54.191% | 32.404% | 58.411% | 43.531% |
| Feb 2012 | 54.528% | 32.408% | 58.798% | 43.549% |
| Mar 2012 | 54.773% | 32.448% | 59.051% | 43.574% |
| Apr 2012 | 55.019% | 32.468% | 59.307% | 43.602% |
| May 2012 | 55.259% | 32.510% | 59.588% | 43.644% |
| Jun 2012 | 55.452% | 32.520% | 59.759% | 43.654% |
| Jul 2012 | 55.655% | 32.561% | 59.979% | 43.715% |
| Aug 2012 | 55.879% | 32.584% | 60.219% | 43.734% |
| Sep 2012 | 56.050% | 32.578% | 60.389% | 43.715% |
| Oct 2012 | 56.273% | 32.598% | 60.642% | 43.760% |
| Nov 2012 | 56.474% | 32.567% | 60.856% | 43.723% |
| Dec 2012 | 56.625% | 32.521% | 61.275% | 43.533% |
| Jan 2013 | 56.868% | 32.535% | 61.308% | 43.680% |
| Feb 2013 | 57.206% | 32.513% | 61.698% | 43.662% |
| Mar 2013 | 57.463% | 32.513% | 61.973% | 43.657% |
| Apr 2013 | 57.713% | 32.500% | 62.240% | 43.645% |
| May 2013 | 57.936% | 32.474% | 62.498% | 43.610% |