Year	Millions of Persons
1960-01-01	1.65
1961-01-01	1.70
1962-01-01	1.75
1963-01-01	1.80
1964-01-01	1.84
1965-01-01	1.89
1966-01-01	1.93
1967-01-01	1.98
1968-01-01	2.01
1969-01-01	2.04
1970-01-01	2.07
1971-01-01	2.11
1972-01-01	2.15
1973-01-01	2.19
1974-01-01	2.23
1975-01-01	2.26
1976-01-01	2.29
1977-01-01	2.33
1978-01-01	2.35
1979-01-01	2.38
1980-01-01	2.41
1981-01-01	2.53
1982-01-01	2.65
1983-01-01	2.68
1984-01-01	2.73
1985-01-01	2.74
1986-01-01	2.73
1987-01-01	2.77
1988-01-01	2.85
1989-01-01	2.93
1990-01-01	3.05
1991-01-01	3.14
1992-01-01	3.23
1993-01-01	3.31
1994-01-01	3.42
1995-01-01	3.52
1996-01-01	3.67
1997-01-01	3.80
1998-01-01	3.93
1999-01-01	3.96
2000-01-01	4.03
2001-01-01	4.14
2002-01-01	4.18
2003-01-01	4.11
2004-01-01	4.17
2005-01-01	4.27
2006-01-01	4.40
2007-01-01	4.59
2008-01-01	4.84
2009-01-01	4.99
2010-01-01	5.08
2011-01-01	5.18