| Year | Dividends paid | Increase from previous year | CAGR to 2012 from | Bumpiness to 2012 from |
| 1989 | $ 0.00197 | | 23.210% | 21
|
| 1990 | $ 0.00285 | 44.478% | 22.322% | 21
|
| 1991 | $ 0.00417 | 46.213% | 21.287% | 21
|
| 1992 | $ 0.00724 | 73.669% | 19.129% | 18
|
| 1993 | $ 0.00938 | 29.550% | 18.604% | 19
|
| 1994 | $ 0.01383 | 47.389% | 17.181% | 18
|
| 1995 | $ 0.02074 | 49.986% | 15.492% | 17
|
| 1996 | $ 0.02667 | 28.573% | 14.720% | 17
|
| 1997 | $ 0.03111 | 16.665% | 14.592% | 18
|
| 1998 | $ 0.03600 | 15.718% | 14.512% | 18
|
| 1999 | $ 0.03733 | 3.700% | 15.389% | 19
|
| 2000 | $ 0.04067 | 8.931% | 15.944% | 19
|
| 2001 | $ 0.04400 | 8.198% | 16.675% | 20
|
| 2002 | $ 0.04400 | NO CHANGE | 18.488% | 20
|
| 2003 | $ 0.05000 | 13.636% | 19.040% | 21
|
| 2004 | $ 0.07400 | 48.000% | 15.844% | 20
|
| 2005 | $ 0.08900 | 20.270% | 15.225% | 21
|
| 2006 | $ 0.13500 | 51.685% | 10.064% | 17
|
| 2007 | $ 0.20000 | 48.148% | 3.714% | 5
|
| 2008 | $ 0.22000 | 10.000% | 2.199% | 4
|
| 2009 | $ 0.24000 | 9.091% | The dividend for 2012 was the same as the dividend for this year | There is no useful bumpiness for this year |
| 2010 | $ 0.24000 | NO CHANGE | The dividend for 2012 was the same as the dividend for this year | There is no useful bumpiness for this year |
| 2011 | $ 0.24000 | NO CHANGE | The dividend for 2012 was the same as the dividend for this year | There is no useful bumpiness for this year |
| 2012 | $ 0.24000 | NO CHANGE | | |