Year	Number
1985	6304100
1989	6848000
1990	6743000
1991	6803000
1992	6736000
1993	6706000
1994	6660000
1995	9601650
1996	9985150
1997	10238850
1998	10229710
1999	10306430
2000	10471200
2001	9947600
2002	10097700
2003	10090000
2004	10119520
2005	10785270
2006	10286800
2007	10542400
2008	10535400
2009	10675580
2010	10577580
2011	10456015
2012	10555650
2013	10535853
2014	10626120
2015	10589970
2016	10821100
2017	10835000
2018	10937790
2019	10987000
2020	11028000