Year	Number
1972	184705
1976	192078
1977	200185
1978	220003
1979	234056
1980	242786
1981	252150
1982	263846
1983	253855
1984	248161
1986	246228
1988	292820
1994	462341
1995	506987
1998	608707
1999	653868
2000	673948
2001	700117
2002	660507
2004	425460
2005	252811
2006	307653
2007	259813
2008	256643
2009	343908
2010	425130
2011	329243
2012	288743
2013	363385