Quarter	Thousands of Persons, Seasonally Adjusted
1959-01-01	19956.88
1959-04-01	19958.71
1959-07-01	19977.98
1959-10-01	20055.21
1960-01-01	19871.50
1960-04-01	19917.58
1960-07-01	20149.88
1960-10-01	20068.28
1961-01-01	20014.53
1961-04-01	20299.67
1961-07-01	20024.54
1961-10-01	19748.80
1962-01-01	19957.43
1962-04-01	19716.83
1962-07-01	19829.10
1962-10-01	19945.92
1963-01-01	19506.18
1963-04-01	19479.16
1963-07-01	19403.60
1963-10-01	19547.26
1964-01-01	19586.70
1964-04-01	19298.38
1964-07-01	19174.70
1964-10-01	19102.41
1965-01-01	19444.76
1965-04-01	19321.94
1965-07-01	19463.24
1965-10-01	19506.46
1966-01-01	19047.70
1966-04-01	19099.48
1966-07-01	19109.12
1966-10-01	19135.45
1967-01-01	19360.14
1967-04-01	19254.67
1967-07-01	19307.12
1967-10-01	19349.59
1968-01-01	19326.31
1968-04-01	19405.64
1968-07-01	19281.46
1968-10-01	19175.07
1969-01-01	19119.79
1969-04-01	19179.62
1969-07-01	19029.06
1969-10-01	19126.59
1970-01-01	19161.64
1970-04-01	19171.63
1970-07-01	19244.76
1970-10-01	19293.11
1971-01-01	19231.00
1971-04-01	19384.30
1971-07-01	19170.35
1971-10-01	18923.77
1972-01-01	18912.75
1972-04-01	18797.86
1972-07-01	18833.81
1972-10-01	18853.96
1973-01-01	18770.12
1973-04-01	18880.48
1973-07-01	19114.36
1973-10-01	19254.02
1974-01-01	19395.69
1974-04-01	19386.52
1974-07-01	19319.92
1974-10-01	19474.27
1975-01-01	19648.84
1975-04-01	19399.30
1975-07-01	19411.51
1975-10-01	19510.91
1976-01-01	19329.70
1976-04-01	19524.88
1976-07-01	19855.79
1976-10-01	19731.17
1977-01-01	19848.42
1977-04-01	20042.96
1977-07-01	19677.42
1977-10-01	19608.05
1978-01-01	19795.30
1978-04-01	19880.07
1978-07-01	19895.00
1978-10-01	19873.76
1979-01-01	19890.22
1979-04-01	19977.41
1979-07-01	20114.98
1979-10-01	20241.88
1980-01-01	20143.63
1980-04-01	20252.52
1980-07-01	20409.64
1980-10-01	20439.70
1981-01-01	20489.04
1981-04-01	20335.33
1981-07-01	20278.25
1981-10-01	20339.37
1982-01-01	20305.73
1982-04-01	20424.86
1982-07-01	20236.69
1982-10-01	20227.97
1983-01-01	20277.73
1983-04-01	20397.53
1983-07-01	20351.26
1983-10-01	20375.44
1984-01-01	20393.72
1984-04-01	20317.02
1984-07-01	20452.09
1984-10-01	20515.27
1985-01-01	20383.51
1985-04-01	20513.00
1985-07-01	20600.67
1985-10-01	20542.68
1986-01-01	20618.55
1986-04-01	20592.42
1986-07-01	20560.25
1986-10-01	20696.88
1987-01-01	20639.51
1987-04-01	20553.26
1987-07-01	20596.01
1987-10-01	20555.40
1988-01-01	20779.72
1988-04-01	20846.95
1988-07-01	20829.14
1988-10-01	20810.30
1989-01-01	20776.39
1989-04-01	20747.33
1989-07-01	20812.07
1989-10-01	20994.21
1990-01-01	21108.93
1990-04-01	21184.31
1990-07-01	21250.53
1990-10-01	21313.99
1991-01-01	21402.45
1991-04-01	21407.22
1991-07-01	21403.50
1991-10-01	21424.01
1992-01-01	21405.41
1992-04-01	21581.96
1992-07-01	21190.44
1992-10-01	21541.80
1993-01-01	21462.16
1993-04-01	21360.36
1993-07-01	21255.01
1993-10-01	21137.79
1994-01-01	21017.45
1994-04-01	20968.56
1994-07-01	20878.49
1994-10-01	20809.68
1995-01-01	20744.21
1995-04-01	20742.13
1995-07-01	20765.68
1995-10-01	20800.05
1996-01-01	20824.20
1996-04-01	20805.16
1996-07-01	20859.98
1996-10-01	20832.47
1997-01-01	20826.79
1997-04-01	20877.11
1997-07-01	20852.68
1997-10-01	20861.43
1998-01-01	20952.06
1998-04-01	20998.65
1998-07-01	21038.95
1998-10-01	21138.04
1999-01-01	21182.43
1999-04-01	21240.67
1999-07-01	21305.45
1999-10-01	21343.41
2000-01-01	21445.92
2000-04-01	21518.00
2000-07-01	21706.34
2000-10-01	21812.22
2001-01-01	21901.48
2001-04-01	21924.62
2001-07-01	21993.55
2001-10-01	22068.74
2002-01-01	22177.91
2002-04-01	22207.68
2002-07-01	22273.56
2002-10-01	22221.41
2003-01-01	22161.23
2003-04-01	22254.67
2003-07-01	22310.46
2003-10-01	22396.34
2004-01-01	22330.32
2004-04-01	22400.48
2004-07-01	22462.70
2004-10-01	22527.27
2005-01-01	22511.84
2005-04-01	22547.74
2005-07-01	22548.99
2005-10-01	22719.30
2006-01-01	22861.85
2006-04-01	23011.06
2006-07-01	22979.00
2006-10-01	23012.89
2007-01-01	23073.09
2007-04-01	23151.24
2007-07-01	23300.30
2007-10-01	23371.70
2008-01-01	23485.30
2008-04-01	23417.30
2008-07-01	23369.95
2008-10-01	23298.21
2009-01-01	23186.70
2009-04-01	23067.17
2009-07-01	22969.08
2009-10-01	22922.78
2010-01-01	22897.69
2010-04-01	22874.15
2010-07-01	22852.60
2010-10-01	22909.37
2011-01-01	22945.02
2011-04-01	22961.49
2011-07-01	22991.07
2011-10-01	22974.15