Year	Number
1985	8237700
1989	8812000
1990	8617000
1991	7436000
1992	7897000
1993	7646000
1994	7652000
1995	10630600
1996	10819800
1997	10258720
1998	10465880
1999	10309850
2000	10347900
2001	9939300
2002	9793000
2003	9790200
2004	9287770
2005	9469770
2006	9782900
2007	8866900
2008	9070900
2009	9277728
2010	9327548
2011	9445483
2012	9478524
2013	8782583
2014	8904090
2015	8730310
2016	8624940
2017	8638000
2018	8906380
2019	8746000
2020	8835000