Year	Millions of Persons
1975-01-01	2.32
1976-01-01	2.30
1977-01-01	2.26
1978-01-01	2.24
1979-01-01	2.29
1980-01-01	2.35
1981-01-01	2.38
1982-01-01	2.41
1983-01-01	2.42
1984-01-01	2.43
1985-01-01	2.44
1986-01-01	2.43
1987-01-01	2.44
1988-01-01	2.47
1989-01-01	2.49
1990-01-01	2.48
1991-01-01	2.34
1992-01-01	2.18
1993-01-01	2.05
1994-01-01	2.02
1995-01-01	2.05
1996-01-01	2.08
1997-01-01	2.15
1998-01-01	2.19
1999-01-01	2.25
2000-01-01	2.29
2001-01-01	2.32
2002-01-01	2.35
2003-01-01	2.35
2004-01-01	2.36
2005-01-01	2.39
2006-01-01	2.43
2007-01-01	2.49
2008-01-01	2.55
2009-01-01	2.48
2010-01-01	2.48
2011-01-01	2.51