Year	Thousands of Persons
1972-01-01	15471.00
1973-01-01	15608.33
1974-01-01	15516.17
1975-01-01	15386.25
1976-01-01	15250.42
1977-01-01	15196.50
1978-01-01	15178.67
1979-01-01	15239.58
1980-01-01	15032.67
1981-01-01	14486.92
1982-01-01	14134.58
1983-01-01	13961.08
1984-01-01	14161.33
1985-01-01	14234.83
1986-01-01	14191.75
1987-01-01	14393.08
1988-01-01	14825.08
1989-01-01	15143.50
1990-01-01	15139.08
1991-01-01	14582.00
1992-01-01	14060.83
1993-01-01	13819.08
1994-01-01	13947.17
1995-01-01	14101.83
1996-01-01	14198.17
1997-01-01	14458.33
1998-01-01	14598.58
1999-01-01	14763.25
2000-01-01	14913.50
2001-01-01	15022.83
2002-01-01	15099.17
2003-01-01	15258.58
2004-01-01	15399.25
2005-01-01	15528.17
2006-01-01	15662.42
2007-01-01	15820.58
2008-01-01	15895.50
2009-01-01	15488.00
2010-01-01	15539.08
2011-01-01	15625.92