Year	Number
1978	280163
1979	276623
1980	280902
1981	284772
1982	285752
1983	285454
1984	292180
1985	299955
1986	269263
1988	287269
1990	318364
1992	337686
1996	332546
1997	307259
1998	296510
1999	307000
2000	293353
2003	254806
2004	291752
2005	291342
2006	279169
2007	270970
2008	279203
2009	292398
2010	298324
2011	305888
2012	292355
2013	315414
2014	316871
2015	327511
2019	386465
2020	382882
2021	432607
2022	456317