Year Millions of Persons 1960-01-01 46.61 1961-01-01 47.11 1962-01-01 47.97 1963-01-01 48.81 1964-01-01 49.32 1965-01-01 49.79 1966-01-01 50.22 1967-01-01 50.63 1968-01-01 51.01 1969-01-01 51.43 1970-01-01 51.90 1971-01-01 52.40 1972-01-01 52.86 1973-01-01 53.29 1974-01-01 53.63 1975-01-01 53.88 1976-01-01 54.10 1977-01-01 54.34 1978-01-01 54.58 1979-01-01 54.82 1980-01-01 55.10 1981-01-01 55.41 1982-01-01 55.74 1983-01-01 56.04 1984-01-01 56.31 1985-01-01 56.58 1986-01-01 56.87 1987-01-01 57.17 1988-01-01 57.49 1989-01-01 57.83 1990-01-01 58.14 1991-01-01 58.43 1992-01-01 58.71 1993-01-01 58.96 1994-01-01 59.18 1995-01-01 59.38 1996-01-01 59.59 1997-01-01 59.80 1998-01-01 60.01 1999-01-01 60.32 2000-01-01 60.72 2001-01-01 61.16 2002-01-01 61.60 2003-01-01 62.04 2004-01-01 62.49 2005-01-01 62.96 2006-01-01 63.39 2007-01-01 63.78 2008-01-01 64.13 2009-01-01 64.48 2010-01-01 64.82 2011-01-01 65.18