Quarter	Thousands of Persons, Seasonally Adjusted
1972-07-01	367.7637
1972-10-01	348.6161
1973-01-01	337.9422
1973-04-01	338.0221
1973-07-01	328.8027
1973-10-01	322.0528
1974-01-01	317.4422
1974-04-01	323.6708
1974-07-01	354.9406
1974-10-01	386.7698
1975-01-01	415.5943
1975-04-01	464.0235
1975-07-01	509.7653
1975-10-01	558.7438
1976-01-01	598.8964
1976-04-01	629.5881
1976-07-01	591.8471
1976-10-01	621.8044
1977-01-01	638.0054
1977-04-01	649.3018
1977-07-01	716.0340
1977-10-01	755.1883
1978-01-01	838.3011
1978-04-01	899.9833
1978-07-01	951.6750
1978-10-01	1011.6970
1979-01-01	1056.7210
1979-04-01	1111.4390
1979-07-01	1183.6020
1979-10-01	1273.1520
1980-01-01	1389.0950
1980-04-01	1517.9360
1980-07-01	1562.2140
1980-10-01	1665.1890
1981-01-01	1753.5170
1981-04-01	1861.9280
1981-07-01	1933.0400
1981-10-01	2019.6830
1982-01-01	2054.8940
1982-04-01	2109.9180
1982-07-01	2211.0760
1982-10-01	2273.0510
1983-01-01	2320.9810
1983-04-01	2348.4790
1983-07-01	2419.9900
1983-10-01	2488.6270
1984-01-01	2668.0260
1984-04-01	2750.9400
1984-07-01	2818.8590
1984-10-01	2939.4310
1985-01-01	2950.1670
1985-04-01	3027.4860
1985-07-01	3024.6450
1985-10-01	3019.6720
1986-01-01	3000.1350
1986-04-01	2985.8020
1986-07-01	2961.2700
1986-10-01	2951.6850
1987-01-01	2979.1510
1987-04-01	2974.1920
1987-07-01	3001.7270
1987-10-01	2949.7930
1988-01-01	2955.3840
1988-04-01	2970.5360
1988-07-01	2933.2410
1988-10-01	2764.2550
1989-01-01	2731.9510
1989-04-01	2638.2700
1989-07-01	2572.9310
1989-10-01	2581.8470
1990-01-01	2548.4470
1990-04-01	2519.9950
1990-07-01	2489.9220
1990-10-01	2480.8210
1991-01-01	2467.4790
1991-04-01	2483.7660
1991-07-01	2598.7620
1991-10-01	2630.2330
1992-01-01	2684.2100
1992-04-01	2797.4870
1992-07-01	2917.1800
1992-10-01	3133.8670
1993-01-01	3372.0650
1993-04-01	3539.2090
1993-07-01	3698.3250
1993-10-01	3785.9020
1994-01-01	3887.4970
1994-04-01	3931.1530
1994-07-01	3873.5140
1994-10-01	3824.3600
1995-01-01	3757.1340
1995-04-01	3704.8860
1995-07-01	3719.2320
1995-10-01	3673.5530
1996-01-01	3706.6110
1996-04-01	3686.7320
1996-07-01	3629.4880
1996-10-01	3554.9700
1997-01-01	3531.1540
1997-04-01	3523.7920
1997-07-01	3439.0710
1997-10-01	3357.7190
1998-01-01	3264.2370
1998-04-01	3239.1090
1998-07-01	3154.3960
1998-10-01	3050.7480
1999-01-01	2868.6520
1999-04-01	2722.8460
1999-07-01	2659.3850
1999-10-01	2641.5610
2000-01-01	2597.7370
2000-04-01	2521.6570
2000-07-01	2455.7500
2000-10-01	2417.7000
2001-01-01	1920.0900
2001-04-01	1902.2530
2001-07-01	1872.7840
2001-10-01	1928.4990
2002-01-01	2096.5210
2002-04-01	2139.4410
2002-07-01	2192.7760
2002-10-01	2201.9570
2003-01-01	2247.1120
2003-04-01	2230.6910
2003-07-01	2251.6730
2003-10-01	2247.4040
2004-01-01	2225.2440
2004-04-01	2259.3810
2004-07-01	2219.5210
2004-10-01	2157.9710
2005-01-01	2034.7350
2005-04-01	1965.6420
2005-07-01	1806.6510
2005-10-01	1842.7370
2006-01-01	1870.5630
2006-04-01	1850.8370
2006-07-01	1814.6870
2006-10-01	1815.5290
2007-01-01	1789.8930
2007-04-01	1766.7950
2007-07-01	1847.9940
2007-10-01	1936.7200
2008-01-01	2094.3260
2008-04-01	2386.0000
2008-07-01	2680.5080
2008-10-01	3227.5950
2009-01-01	3868.0300
2009-04-01	4138.1300
2009-07-01	4249.1120
2009-10-01	4355.3070
2010-01-01	4455.6780
2010-04-01	4644.3820
2010-07-01	4706.4590
2010-10-01	4727.0870
2011-01-01	4751.5540
2011-04-01	4832.7490
2011-07-01	5115.7520
2011-10-01	5304.1980
2012-01-01	5463.2350