| Year | Growth of $1,000 |
|---|---|
| 1990 | 1,046 |
| 1991 | 1,278 |
| 1992 | 1,427 |
| 1993 | 1,711 |
| 1994 | 1,668 |
| 1995 | 2,034 |
| 1996 | 2,348 |
| 1997 | 2,715 |
| 1998 | 3,051 |
| 1999 | 3,067 |
| 2000 | 3,374 |
| 2001 | 3,486 |
| 2002 | 3,516 |
| 2003 | 3,827 |
| 2004 | 4,164 |
| 2005 | 4,564 |
| 2006 | 5,093 |
| 2007 | 5,199 |
| 2008 | 4,713 |
| 2009 | 5,272 |
| 2010 | 5,766 |
| 2011 | 5,791 |
| 2012 | 6,478 |
| 2013 | 7,285 |
| 2014 | 7,897 |