Year	Thousands of Persons
1970-01-01	21090
1971-01-01	21186
1972-01-01	21365
1973-01-01	21587
1974-01-01	21871
1975-01-01	22056
1976-01-01	22197
1977-01-01	22277
1978-01-01	22493
1979-01-01	22746
1980-01-01	22956
1981-01-01	23109
1982-01-01	23467
1983-01-01	23771
1984-01-01	23953
1985-01-01	24133
1986-01-01	24388
1987-01-01	24575
1988-01-01	24947
1989-01-01	24889
1990-01-01	25093
1991-01-01	25120
1992-01-01	25200
1993-01-01	24786
1994-01-01	24867
1995-01-01	24930
1996-01-01	24985
1997-01-01	25040
1998-01-01	25088
1999-01-01	25124
2000-01-01	25156
2001-01-01	25193
2002-01-01	25245
2003-01-01	25400
2004-01-01	25611
2005-01-01	25861
2006-01-01	26004
2007-01-01	26197
2008-01-01	26407
2009-01-01	26598
2010-01-01	26742
2011-01-01	26885
2012-01-01	26969