| Value | Category | Cases | |
|---|---|---|---|
| 1997 | 1997 | 318193 |
3%
|
| 1998 | 1998 | 368331 |
3.4%
|
| 1999 | 1999 | 394260 |
3.7%
|
| 2000 | 2000 | 420411 |
3.9%
|
| 2001 | 2001 | 467114 |
4.3%
|
| 2002 | 2002 | 514407 |
4.8%
|
| 2003 | 2003 | 569725 |
5.3%
|
| 2004 | 2004 | 597693 |
5.5%
|
| 2005 | 2005 | 612994 |
5.7%
|
| 2006 | 2006 | 629335 |
5.8%
|
| 2007 | 2007 | 618705 |
5.7%
|
| 2008 | 2008 | 617604 |
5.7%
|
| 2009 | 2009 | 600657 |
5.6%
|
| 2010 | 2010 | 569018 |
5.3%
|
| 2011 | 2011 | 533987 |
5%
|
| 2012 | 2012 | 510886 |
4.7%
|
| 2013 | 2013 | 496798 |
4.6%
|
| 2014 | 2014 | 493650 |
4.6%
|
| 2015 | 2015 | 490503 |
4.5%
|
| 2016 | 2016 | 486872 |
4.5%
|
| 2017 | 2017 | 461963 |
4.3%
|
| 2018 | 2018 | 6626 |
0.1%
|
| 2019 | 2019 | 16 |
0%
|
| 9999 | Unspecified | 944 |
0%
|