Year	Number of Permits
1960-01-01	108858
1961-01-01	125577
1962-01-01	130095
1963-01-01	148624
1964-01-01	165658
1965-01-01	166565
1966-01-01	134474
1967-01-01	164123
1968-01-01	196878
1969-01-01	210415
1970-01-01	190528
1971-01-01	233653
1972-01-01	249914
1973-01-01	268529
1974-01-01	222123
1975-01-01	231456
1976-01-01	273203
1977-01-01	245724
1978-01-01	227667
1979-01-01	197049
1980-01-01	158601
1981-01-01	177973
1982-01-01	125860
1983-01-01	162645
1984-01-01	134900
1985-01-01	165826
1986-01-01	199785
1987-01-01	245986
1988-01-01	222562
1989-01-01	215382
1990-01-01	181630
1991-01-01	156197
1992-01-01	168271
1993-01-01	155443
1994-01-01	154057
1995-01-01	110933
1996-01-01	124713
1997-01-01	147040
1998-01-01	137439
1999-01-01	149968
2000-01-01	151653
2001-01-01	162733
2002-01-01	205034
2003-01-01	218426
2004-01-01	233431
2005-01-01	225481
2006-01-01	227395
2007-01-01	228343
2008-01-01	211056
2009-01-01	149081
2010-01-01	189930
2011-01-01	193950
2012-01-01	214827
2013-01-01	187923
2014-01-01	189329
2015-01-01	195535
2016-01-01	197915
2017-01-01	219763