Year Total 1965 5105000 1966 5761000 1967 5956000 1968 6630000 1969 7291000 1970 8198000 1971 8092000 1972 8476000 1973 8609000 1974 7841000 1975 8100000 1976 8957000 1977 8820000 1978 9850000 1979 9786000 1980 9391000 1981 8727000 1982 8374000 1983 8272000 1984 8565000 1985 8992000 1986 9698000 1987 9586000 1988 8976000 1989 9113000 1990 9334000 1991 8566000 1992 8896000 1993 9341000 1994 9597000 1995 9381000 1996 10166000 1997 10278000 1998 10283000 1999 10198000 2000 9370000 2001 10223000 2002 9806000 2003 10360000 2004 10009000 2005 10155000 2006 10453000 2007 10673000 2008 10374000 2009 10720000 2010 10754000 2011 10604000 2012 10535000 2013 10758000 2014 10152000 2015 10309000 2016 10412000