Year	Number
1982	320000
1983	328400
1984	337100
1985	346000
1986	355100
1987	364500
1988	374100
1989	384000
1990	394100
1991	404500
1992	415200
1993	426100
1994	437300
1995	448800
1996	460579
1997	561651
1998	566000
1999	571000
2000	576000
2001	626000
2002	678840
2003	700000
2004	630000
2005	634740
2006	681381
2007	697540
2008	750000
2009	803740
2010	838000
2011	855000
2012	867000
2013	870000
2014	965723
2015	1012849
2016	1816262
2017	907881
2018	893529
2019	882175
2020	875480
2021	875480