Year	Number of Permits
1960-01-01	26770.6297792927
1961-01-01	26905.4352878210
1962-01-01	27278.1314708658
1963-01-01	29950.4359216327
1964-01-01	34050.0844194989
1965-01-01	35279.1870308033
1966-01-01	33709.1085789941
1967-01-01	34557.5861110720
1968-01-01	34438.6383949070
1969-01-01	39592.9395146411
1970-01-01	38197.3110522684
1971-01-01	40972.7030479303
1972-01-01	44017.7060606488
1973-01-01	44089.0708840970
1974-01-01	43724.3059761405
1975-01-01	41012.3522866519
1976-01-01	39061.6487556163
1977-01-01	37626.3750193665
1978-01-01	34906.4916407273
1979-01-01	34129.3821039733
1980-01-01	31869.4206960661
1981-01-01	31679.1081564529
1982-01-01	27231.3455119086
1983-01-01	26348.7711094522
1984-01-01	22465.6023324272
1985-01-01	27219.4509781828
1986-01-01	25483.4041324526
1987-01-01	25486.1795236553
1988-01-01	26889.9723939774
1989-01-01	27428.3982872998
1990-01-01	25447.4033437091
1991-01-01	25134.7357005028
1992-01-01	23197.5126410231
1993-01-01	21693.9642811871
1994-01-01	25814.1514669221
1995-01-01	24540.2469048860
1996-01-01	23372.8380681418
1997-01-01	23077.1399597177
1998-01-01	24359.8464767109
1999-01-01	27073.7825884872
2000-01-01	28150.0000000000
2001-01-01	28100.0000000000
2002-01-01	28525.0000000000
2003-01-01	30325.0000000000
2004-01-01	34533.3333333333
2005-01-01	38733.3333333333
2006-01-01	41158.3333333333
2007-01-01	40775.0000000000
2008-01-01	33250.0000000000
2009-01-01	28850.0000000000
2010-01-01	34475.0000000000
2011-01-01	35900.0000000000
2012-01-01	31900.0000000000
2013-01-01	29883.3333333333
2014-01-01	27858.3333333333
2015-01-01	28000.0000000000
2016-01-01	30783.3333333333
2017-01-01	35725.0000000000