| Year | |
|---|---|
| 1993 | 1,346 |
| 1994 | 1,676 |
| 1995 | 1,898 |
| 1996 | 1,823 |
| 1997 | 1,764 |
| 1998 | 1,776 |
| 1999 | 1,786 |
| 2000 | 1,502 |
| 2001 | 1,202 |
| 2002 | 1,118 |
| 2003 | 1,111 |
| 2004 | 1,110 |
| 2005 | 1,051 |
| 2006 | 1,060 |
| 2007 | 1,121 |
| 2008 | 1,172 |
| 2009 | 1,415 |
| 2010 | 1,429 |
| 2011 | 1,468 |
| 2012 | 1,453 |
| 2013 | 1,489 |
| 2014 | 1,518 |
| 2015 | 1,648 |
| 2016 | 1,748 |
| 2017 | 1,925 |