Year Total 1965 35547000 1966 35461000 1967 36052000 1968 37302000 1969 39625000 1970 37559000 1971 38080000 1972 40214000 1973 39678000 1974 44786000 1975 48143000 1976 50132000 1977 52480000 1978 50788000 1979 53955000 1980 56712000 1981 63813000 1982 63104000 1983 66986000 1984 70362000 1985 73723000 1986 79212000 1987 86985000 1988 93341000 1989 101460000 1990 109720000 1991 116760000 1992 123670000 1993 128080000 1994 132180000 1995 140290000 1996 144320000 1997 150980000 1998 156010000 1999 154540000 2000 164380000 2001 165750000 2002 173130000 2003 181330000 2004 193010000 2005 211260000 2006 219380000 2007 240120000 2008 259350000 2009 280840000 2010 290400000 2011 304770000 2012 329990000 2013 352780000 2014 387540000 2015 396550000 2016 411950000