Year Number 1960 203339 1961 208244 1962 212555 1963 217870 1964 224474 1965 230405 1966 236333 1967 243116 1968 249515 1969 256641 1970 264877 1971 273391 1972 283075 1973 293531 1974 304375 1975 315495 1976 326314 1977 337383 1978 347947 1979 357407 1980 365891 1981 372840 1982 379764 1983 386843 1984 391388 1985 396722 1986 404678 1987 411849 1988 418696 1989 425096 1990 430880 1991 436621 1992 441969 1993 446755 1994 452266 1995 458401 1996 463396 1997 467299 1998 470158 1999 472814 2000 476224 2001 479992 2002 484075 2003 489094 2004 496141 2005 502353 2006 510982 2007 518637 2008 523236 2009 530917 2010 542184 2011 558589 2012 577126 2013 595614 2014 613105 2015 628885 2016 642861 2017 656457 2018 669839 2019 682817 2020 695639 2021 708072 2022 720465 2023 733277