Quarter	Thousands of Persons, Seasonally Adjusted
1972-07-01	331.9119
1972-10-01	309.4303
1973-01-01	290.9754
1973-04-01	279.8191
1973-07-01	265.3999
1973-10-01	245.9509
1974-01-01	235.3865
1974-04-01	242.6753
1974-07-01	261.0209
1974-10-01	280.5235
1975-01-01	305.3556
1975-04-01	346.0110
1975-07-01	394.4705
1975-10-01	431.8955
1976-01-01	448.2364
1976-04-01	443.6378
1976-07-01	435.4798
1976-10-01	437.8551
1977-01-01	448.7960
1977-04-01	465.9310
1977-07-01	492.9413
1977-10-01	525.5460
1978-01-01	562.1879
1978-04-01	602.5921
1978-07-01	643.4229
1978-10-01	677.6856
1979-01-01	708.7841
1979-04-01	748.1419
1979-07-01	799.6099
1979-10-01	861.6179
1980-01-01	933.4481
1980-04-01	1001.6100
1980-07-01	1059.0080
1980-10-01	1118.1830
1981-01-01	1185.3940
1981-04-01	1248.7220
1981-07-01	1300.3350
1981-10-01	1341.6150
1982-01-01	1366.2020
1982-04-01	1392.8660
1982-07-01	1438.6520
1982-10-01	1480.6080
1983-01-01	1495.8430
1983-04-01	1516.3240
1983-07-01	1557.7430
1983-10-01	1632.1610
1984-01-01	1723.8520
1984-04-01	1796.3430
1984-07-01	1851.0610
1984-10-01	1900.4400
1985-01-01	1937.8150
1985-04-01	1949.8030
1985-07-01	1946.5450
1985-10-01	1934.8840
1986-01-01	1922.4350
1986-04-01	1893.2430
1986-07-01	1855.8740
1986-10-01	1827.1020
1987-01-01	1803.6310
1987-04-01	1634.8640
1987-07-01	1604.7570
1987-10-01	1563.4710
1988-01-01	1531.3820
1988-04-01	1517.4000
1988-07-01	1475.3520
1988-10-01	1404.8770
1989-01-01	1341.0640
1989-04-01	1293.0990
1989-07-01	1259.3080
1989-10-01	1241.0140
1990-01-01	1222.8390
1990-04-01	1196.0590
1990-07-01	1180.2350
1990-10-01	1176.2080
1991-01-01	1180.0770
1991-04-01	1201.2390
1991-07-01	1241.2060
1991-10-01	1267.5530
1992-01-01	1294.7260
1992-04-01	1357.2470
1992-07-01	1460.7490
1992-10-01	1596.7510
1993-01-01	1743.3260
1993-04-01	1864.5070
1993-07-01	1944.7360
1993-10-01	1999.2230
1994-01-01	2023.7180
1994-04-01	2005.7470
1994-07-01	1956.4040
1994-10-01	1893.6390
1995-01-01	1833.2070
1995-04-01	1807.9490
1995-07-01	1810.7200
1995-10-01	1815.9080
1996-01-01	1815.8930
1996-04-01	1796.3370
1996-07-01	1755.8370
1996-10-01	1718.9900
1997-01-01	1692.0170
1997-04-01	1656.1670
1997-07-01	1608.1160
1997-10-01	1550.7950
1998-01-01	1494.4120
1998-04-01	1444.0990
1998-07-01	1398.3330
1998-10-01	1335.1330
1999-01-01	1249.8740
1999-04-01	1170.4870
1999-07-01	1124.8200
1999-10-01	1102.7330
2000-01-01	1076.0860
2000-04-01	1045.5960
2000-07-01	1022.8800
2000-10-01	1011.2910
2001-01-01	825.7089
2001-04-01	825.0000
2001-07-01	823.5981
2001-10-01	839.1571
2002-01-01	875.6500
2002-04-01	918.4510
2002-07-01	951.3988
2002-10-01	967.2553
2003-01-01	966.3078
2003-04-01	968.8019
2003-07-01	981.5793
2003-10-01	988.1026
2004-01-01	985.8033
2004-04-01	985.2574
2004-07-01	972.9601
2004-10-01	945.1842
2005-01-01	913.3306
2005-04-01	877.6993
2005-07-01	843.2804
2005-10-01	825.4848
2006-01-01	817.2611
2006-04-01	801.4746
2006-07-01	780.3902
2006-10-01	768.9924
2007-01-01	771.2500
2007-04-01	786.7389
2007-07-01	819.5329
2007-10-01	881.4860
2008-01-01	996.1878
2008-04-01	1174.9040
2008-07-01	1409.4250
2008-10-01	1679.5310
2009-01-01	2126.1000
2009-04-01	2280.7990
2009-07-01	2361.3730
2009-10-01	2405.7170
2010-01-01	2475.5490
2010-04-01	2532.0140
2010-07-01	2551.9960
2010-10-01	2556.7090
2011-01-01	2557.2540
2011-04-01	2606.5940
2011-07-01	2746.1580
2011-10-01	2851.0470
2012-01-01	2935.9140