Year	Thousands of Persons
1971-01-01	24328
1972-01-01	24399
1973-01-01	24790
1974-01-01	24861
1975-01-01	24770
1976-01-01	24623
1977-01-01	24650
1978-01-01	24786
1979-01-01	25043
1980-01-01	24929
1981-01-01	24268
1982-01-01	23794
1983-01-01	23619
1984-01-01	24127
1985-01-01	24434
1986-01-01	24590
1987-01-01	25084
1988-01-01	25917
1989-01-01	26600
1990-01-01	26724
1991-01-01	26018
1992-01-01	25399
1993-01-01	25173
1994-01-01	25386
1995-01-01	25684
1996-01-01	25928
1997-01-01	26407
1998-01-01	26684
1999-01-01	27049
2000-01-01	27375
2001-01-01	27618
2002-01-01	27835
2003-01-01	28096
2004-01-01	28388
2005-01-01	28681
2006-01-01	28942
2007-01-01	29148
2008-01-01	29354
2009-01-01	28878
2010-01-01	28929
2011-01-01	29078
2012-01-01	29439