Year	Number
1991	1900510
1992	1879062
1993	1852203
1994	1824512
1995	1797116
1996	1770037
1997	1743081
1998	1716796
1999	1719125
2000	1686694
2001	1644504
2002	1623229
2003	1676587
2004	1585377
2005	1545558
2006	1501795
2007	1500407
2008	1500975
2009	1507231
2010	1483908
2011	1477415
2012	1469043
2013	1461653
2014	1473507
2015	1465455
2016	1475011
2017	1461249
2018	1466791
2019	1470500
2020	1478716
2021	1468048
2022	1489419
2023	1509766