Quarter	Thousands of Persons, Seasonally Adjusted
1972-01-01	15.7979
1972-04-01	13.6921
1972-07-01	13.8185
1972-10-01	15.6260
1973-01-01	12.5072
1973-04-01	10.3924
1973-07-01	9.8863
1973-10-01	10.5192
1974-01-01	10.2853
1974-04-01	9.1370
1974-07-01	12.8396
1974-10-01	10.8347
1975-01-01	14.5680
1975-04-01	20.0404
1975-07-01	22.5461
1975-10-01	24.5490
1976-01-01	18.3353
1976-04-01	18.8811
1976-07-01	14.7033
1976-10-01	12.8538
1977-01-01	11.2285
1977-04-01	16.0946
1977-07-01	7.8053
1977-10-01	10.3269
1978-01-01	13.5785
1978-04-01	12.1951
1978-07-01	18.6536
1978-10-01	20.2338
1979-01-01	21.3223
1979-04-01	20.6610
1979-07-01	15.7918
1979-10-01	15.1167
1980-01-01	14.5554
1980-04-01	12.3741
1980-07-01	15.9965
1980-10-01	14.0101
1981-01-01	16.3494
1981-04-01	18.4869
1981-07-01	16.0218
1981-10-01	19.4094
1982-01-01	21.0079
1982-04-01	24.5082
1982-07-01	25.9109
1982-10-01	37.9887
1983-01-01	35.5518
1983-04-01	38.1038
1983-07-01	44.2769
1983-10-01	29.5667
1984-01-01	37.0631
1984-04-01	40.8449
1984-07-01	35.8928
1984-10-01	29.8234
1985-01-01	30.4675
1985-04-01	24.4268
1985-07-01	25.0157
1985-10-01	21.1524
1986-01-01	17.7305
1986-04-01	17.1412
1986-07-01	18.2924
1986-10-01	20.0095
1987-01-01	24.8583
1987-04-01	18.0221
1987-07-01	18.5383
1987-10-01	20.9919
1988-01-01	24.0294
1988-04-01	38.8159
1988-07-01	36.3948
1988-10-01	48.4979
1989-01-01	54.8143
1989-04-01	59.5791
1989-07-01	64.5866
1989-10-01	66.3239
1990-01-01	66.7242
1990-04-01	68.9768
1990-07-01	65.7767
1990-10-01	61.1090
1991-01-01	65.2835
1991-04-01	63.9532
1991-07-01	70.1607
1991-10-01	73.7077
1992-01-01	76.1685
1992-04-01	75.3229
1992-07-01	74.4826
1992-10-01	79.5489
1993-01-01	78.1224
1993-04-01	78.4487
1993-07-01	79.2072
1993-10-01	72.6049
1994-01-01	72.1098
1994-04-01	72.9246
1994-07-01	65.2669
1994-10-01	68.0076
1995-01-01	66.2054
1995-04-01	61.5138
1995-07-01	60.6709
1995-10-01	55.3276
1996-01-01	61.2344
1996-04-01	58.1208
1996-07-01	56.9421
1996-10-01	54.9607
1997-01-01	48.4703
1997-04-01	50.1999
1997-07-01	49.2205
1997-10-01	43.4608
1998-01-01	41.1225
1998-04-01	40.7134
1998-07-01	36.8849
1998-10-01	37.8301
1999-01-01	36.3107
1999-04-01	39.8967
1999-07-01	43.4822
1999-10-01	47.2136
2000-01-01	51.0903
2000-04-01	44.9894
2000-07-01	42.2336
2000-10-01	43.9615
2001-01-01	46.3831
2001-04-01	45.3544
2001-07-01	46.0169
2001-10-01	46.0463
2002-01-01	50.4319
2002-04-01	49.4577
2002-07-01	51.4371
2002-10-01	55.8932
2003-01-01	56.6471
2003-04-01	61.9260
2003-07-01	65.9993
2003-10-01	62.5920
2004-01-01	61.2426
2004-04-01	61.4051
2004-07-01	61.3825
2004-10-01	62.0350
2005-01-01	60.7946
2005-04-01	59.6293
2005-07-01	63.4672
2005-10-01	60.4832
2006-01-01	50.1625
2006-04-01	49.5295
2006-07-01	43.6200
2006-10-01	36.6950
2007-01-01	34.5362
2007-04-01	34.1207
2007-07-01	33.9452
2007-10-01	34.6969
2008-01-01	35.2689
2008-04-01	36.4618
2008-07-01	37.6755
2008-10-01	41.3996
2009-01-01	47.4705
2009-04-01	47.8448
2009-07-01	51.1191
2009-10-01	51.2317
2010-01-01	54.9009
2010-04-01	57.5184
2010-07-01	56.0736
2010-10-01	57.5472
2011-01-01	46.3305
2011-04-01	47.5975
2011-07-01	45.4825
2011-10-01	51.8535
2012-01-01	51.9748