Year	Number
1990	1474
1991	1455
1992	1445
1993	1442
1994	1483
1995	1462
1996	1459
1997	1468
1998	1484
1999	1500
2000	1519
2001	1533
2002	1549
2003	1567
2004	1588
2005	1612
2006	1650
2007	1686
2008	1744
2009	1824
2010	1923
2011	2028
2012	2149
2013	2277
2014	2407
2015	2529
2016	2661
2017	2776
2018	2858
2019	2924
2020	2970
2021	3000
2022	3029