Year	Number
1971	722187
1972	727682
1973	740030
1974	734796
1977	780428
1999	960028
2002	901491
2003	930189
2004	959909
2005	887424
2006	885929
2007	867865
2009	767203
2010	771046
2011	775358
2012	864236
2013	1020428
2014	1037397
2015	1161723
2016	1159687