Year	Number
1998	1100
1999	4300
2000	4768
2001	4530
2002	4394
2003	4570
2008	1004
2009	1359
2010	1573.54975701333
2011	1060.06567164179
2012	750.069402985075
2013	552
2014	420
2015	81
2019	108
2020	44