Year Total 1960 0 1965 0 1970 0 1975 0 1976 0 1977 0 1978 0 1979 0 1980 0 1981 0 1982 0 1983 0 1984 1750 1985 2029 1986 4531 1987 6321 1988 9008 1989 12928 1990 18096 1991 24528 1992 35546 1993 53438 1994 78024 1995 210643 1996 562517 1997 916173 1998 1065820 1999 2220969 2000 3669327 2001 6520947 2002 11700000 2003 18495251 2004 30336607 2005 46909972 2006 63803015 2007 93386881 2008 140578243 2009 163676961 2010 211290235 2011 249805619 2012 281963665 2013 313226914 2014 325582819 2015 338948340 2016 385573398 2017 458923202