Year	Thousands of Persons
1970-01-01	19530
1971-01-01	19720
1972-01-01	19908
1973-01-01	20090
1974-01-01	20270
1975-01-01	20442
1976-01-01	20619
1977-01-01	20811
1978-01-01	21002
1979-01-01	21195
1980-01-01	21391
1981-01-01	21578
1982-01-01	21762
1983-01-01	21935
1984-01-01	22112
1985-01-01	22293
1986-01-01	22479
1987-01-01	22675
1988-01-01	22873
1989-01-01	23054
1990-01-01	23212
1991-01-01	23342
1992-01-01	23475
1993-01-01	23609
1994-01-01	23739
1995-01-01	23878
1996-01-01	24017
1997-01-01	24153
1998-01-01	24278
1999-01-01	24426
2000-01-01	24616
2001-01-01	24823
2002-01-01	25034
2003-01-01	25242
2004-01-01	25465
2005-01-01	25697
2006-01-01	25888
2007-01-01	26042
2008-01-01	26175
2009-01-01	26287
2010-01-01	26401
2011-01-01	26526
2012-01-01	26633