Year	Thousands of Persons
1973-01-01	160
1974-01-01	190
1975-01-01	270
1976-01-01	290
1977-01-01	270
1978-01-01	280
1979-01-01	290
1980-01-01	350
1981-01-01	540
1982-01-01	630
1983-01-01	700
1984-01-01	710
1985-01-01	600
1986-01-01	640
1987-01-01	622
1988-01-01	609
1989-01-01	558
1990-01-01	516
1991-01-01	490
1992-01-01	478
1993-01-01	437
1994-01-01	492
1995-01-01	523
1996-01-01	489
1997-01-01	423
1998-01-01	337
1999-01-01	277
2000-01-01	246
2001-01-01	206
2002-01-01	254
2003-01-01	341
2004-01-01	419
2005-01-01	441
2006-01-01	366
2007-01-01	306
2008-01-01	268
2009-01-01	327
2010-01-01	390
2011-01-01	389
2012-01-01	469