| Frequency | Number of dividends |
| Annually | 0 |
| Semi-annually | 0 |
| Quarterly | 79 |
| Monthly | 0 |
| Irregularly | 0 |
| 'none' | 0 |
Dividend payment timing:
| Month | Number of dividends |
| January | 0 |
| February | 17 |
| March | 3 |
| April | 0 |
| May | 19 |
| June | 0 |
| July | 0 |
| August | 20 |
| September | 0 |
| October | 0 |
| November | 20 |
| December | 0 |
| Status | Number |
| Cancelled | 0 |
| Discontinued | 0 |
| Omitted | 0 |
| Year | Dividends paid | Increase from previous year | CAGR to 2012 from | Bumpiness to 2012 from |
| 1993 | $ 0.02500 | 20.614% | 30 | |
| 1994 | $ 0.05750 | 130.000% | 16.365% | 17 |
| 1995 | $ 0.06500 | 13.043% | 16.564% | 18 |
| 1996 | $ 0.07000 | 7.692% | 17.142% | 18 |
| 1997 | $ 0.07500 | 7.143% | 17.841% | 18 |
| 1998 | $ 0.08000 | 6.667% | 18.682% | 19 |
| 1999 | $ 0.09000 | 12.500% | 19.171% | 19 |
| 2000 | $ 0.10000 | 11.111% | 19.869% | 20 |
| 2001 | $ 0.11000 | 10.000% | 20.809% | 20 |
| 2002 | $ 0.12000 | 9.091% | 22.048% | 21 |
| 2003 | $ 0.13000 | 8.333% | 23.675% | 21 |
| 2004 | $ 0.22000 | 69.231% | 18.921% | 16 |
| 2005 | $ 0.35000 | 59.091% | 14.078% | 5 |
| 2006 | $ 0.42000 | 20.000% | 13.120% | 5 |
| 2007 | $ 0.50000 | 19.048% | 11.970% | 5 |
| 2008 | $ 0.56000 | 12.000% | 11.963% | 5 |
| 2009 | $ 0.60000 | 7.143% | 13.617% | 5 |
| 2010 | $ 0.66000 | 10.000% | 15.470% | 6 |
| 2011 | $ 0.80000 | 21.212% | 10.000% | 0 |
| 2012 | $ 0.88000 | 10.000% |
| Yield | Price |
| 0.5% | $176.00 |
| 1.0% | $ 88.00 |
| 1.5% | $ 58.67 |
| 2.0% | $ 44.00 |
| 2.5% | $ 35.20 |
| 3.0% | $ 29.33 |
| 3.5% | $ 25.14 |
| 4.0% | $ 22.00 |
| 4.5% | $ 19.56 |
| 5.0% | $ 17.60 |
| 5.5% | $ 16.00 |
| 6.0% | $ 14.67 |
| 6.5% | $ 13.54 |
| 7.0% | $ 12.57 |
| 7.5% | $ 11.73 |
| 8.0% | $ 11.00 |
| 8.5% | $ 10.35 |
| 9.0% | $ 9.78 |
| 9.5% | $ 9.26 |
| 10.0% | $ 8.80 |