| Year | |
|---|---|
| 1993 | 710 |
| 1994 | 655 |
| 1995 | 731 |
| 1996 | 700 |
| 1997 | 1,038 |
| 1998 | 1,445 |
| 1999 | 1,401 |
| 2000 | 1,036 |
| 2001 | 835 |
| 2002 | 632 |
| 2003 | 664 |
| 2004 | 739 |
| 2005 | 590 |
| 2006 | 547 |
| 2007 | 683 |
| 2008 | 853 |
| 2009 | 1,145 |
| 2010 | 1,160 |
| 2011 | 1,059 |
| 2012 | 1,073 |
| 2013 | 1,167 |
| 2014 | 1,218 |
| 2015 | 1,448 |
| 2016 | 1,449 |
| 2017 | 1,664 |