Year	Thousands of Persons
1971-01-01	19137
1972-01-01	19232
1973-01-01	19336
1974-01-01	19438
1975-01-01	19552
1976-01-01	19675
1977-01-01	19816
1978-01-01	19964
1979-01-01	20138
1980-01-01	20311
1981-01-01	20454
1982-01-01	20561
1983-01-01	20691
1984-01-01	20834
1985-01-01	20972
1986-01-01	21083
1987-01-01	21189
1988-01-01	21274
1989-01-01	21355
1990-01-01	21421
1991-01-01	21468
1992-01-01	21494
1993-01-01	21509
1994-01-01	21546
1995-01-01	21606
1996-01-01	21695
1997-01-01	21787
1998-01-01	21884
1999-01-01	21999
2000-01-01	22149
2001-01-01	22341
2002-01-01	22521
2003-01-01	22695
2004-01-01	22890
2005-01-01	23132
2006-01-01	23361
2007-01-01	23602
2008-01-01	23821
2009-01-01	24027
2010-01-01	24236
2011-01-01	24433
2012-01-01	24646