Year	Number
1990	615956
1991	627013
1992	636429
1993	638969
1994	646351
1995	649626
1996	652874
1997	652220
1998	651947
1999	654191
2000	654386
2001	656817
2002	656658
2003	650904
2004	646544
2005	643928
2006	643432
2007	651164
2008	656559
2009	660858
2010	664880
2011	666934
2012	665691
2013	661747
2014	655129
2015	647774
2016	643353
2017	638042
2018	633044
2019	627058
2020	620405
2021	613569
2022	607039