Quarter	Billions of US Dollars
1952-01-01	83.65
1952-04-01	86.13
1952-07-01	88.69
1952-10-01	91.84
1953-01-01	93.86
1953-04-01	96.36
1953-07-01	98.62
1953-10-01	99.15
1954-01-01	100.07
1954-04-01	102.03
1954-07-01	104.48
1954-10-01	107.48
1955-01-01	110.51
1955-04-01	116.54
1955-07-01	121.43
1955-10-01	126.45
1956-01-01	129.45
1956-04-01	134.86
1956-07-01	138.14
1956-10-01	141.49
1957-01-01	143.23
1957-04-01	147.95
1957-07-01	150.16
1957-10-01	152.34
1958-01-01	151.54
1958-04-01	154.64
1958-07-01	157.67
1958-10-01	162.89
1959-01-01	164.89
1959-04-01	172.51
1959-07-01	178.35
1959-10-01	183.42
1960-01-01	185.91
1960-04-01	191.44
1960-07-01	194.85
1960-10-01	199.36
1961-01-01	201.83
1961-04-01	206.19
1961-07-01	210.00
1961-10-01	215.83
1962-01-01	218.35
1962-04-01	226.28
1962-07-01	232.70
1962-10-01	240.62
1963-01-01	244.39
1963-04-01	253.84
1963-07-01	260.51
1963-10-01	269.86
1964-01-01	274.45
1964-04-01	285.03
1964-07-01	292.24
1964-10-01	301.94
1965-01-01	308.65
1965-04-01	320.22
1965-07-01	328.01
1965-10-01	338.72
1966-01-01	343.96
1966-04-01	356.87
1966-07-01	361.32
1966-10-01	366.87
1967-01-01	368.34
1967-04-01	379.33
1967-07-01	384.10
1967-10-01	402.62
1968-01-01	399.17
1968-04-01	412.94
1968-07-01	420.77
1968-10-01	436.27
1969-01-01	441.91
1969-04-01	456.96
1969-07-01	462.97
1969-10-01	473.79
1970-01-01	470.74
1970-04-01	481.91
1970-07-01	490.38
1970-10-01	501.17
1971-01-01	505.15
1971-04-01	524.77
1971-07-01	541.81
1971-10-01	558.84
1972-01-01	571.20
1972-04-01	599.01
1972-07-01	618.74
1972-10-01	646.25
1973-01-01	674.78
1973-04-01	708.07
1973-07-01	734.31
1973-10-01	752.82
1974-01-01	766.11
1974-04-01	798.66
1974-07-01	818.31
1974-10-01	832.63
1975-01-01	827.56
1975-04-01	844.42
1975-07-01	855.94
1975-10-01	874.61
1976-01-01	883.26
1976-04-01	912.89
1976-07-01	936.54
1976-10-01	965.49
1977-01-01	990.39
1977-04-01	1034.85
1977-07-01	1073.28
1977-10-01	1112.94
1978-01-01	1143.94
1978-04-01	1197.58
1978-07-01	1238.76
1978-10-01	1278.91
1979-01-01	1308.37
1979-04-01	1354.91
1979-07-01	1405.02
1979-10-01	1440.82
1980-01-01	1462.08
1980-04-01	1457.72
1980-07-01	1484.30
1980-10-01	1531.38
1981-01-01	1541.45
1981-04-01	1579.51
1981-07-01	1618.03
1981-10-01	1642.13
1982-01-01	1654.32
1982-04-01	1680.34
1982-07-01	1689.30
1982-10-01	1694.60
1983-01-01	1697.09
1983-04-01	1732.64
1983-07-01	1784.78
1983-10-01	1855.72
1984-01-01	1917.92
1984-04-01	2007.76
1984-07-01	2078.18
1984-10-01	2162.46
1985-01-01	2202.66
1985-04-01	2265.71
1985-07-01	2321.85
1985-10-01	2402.96
1986-01-01	2418.12
1986-04-01	2454.89
1986-07-01	2503.43
1986-10-01	2601.80
1987-01-01	2598.20
1987-04-01	2665.11
1987-07-01	2732.82
1987-10-01	2793.02
1988-01-01	2847.44
1988-04-01	2924.49
1988-07-01	2980.56
1988-10-01	3043.36
1989-01-01	3068.11
1989-04-01	3128.72
1989-07-01	3167.48
1989-10-01	3185.02
1990-01-01	3213.48
1990-04-01	3205.25
1990-07-01	3193.03
1990-10-01	3165.41
1991-01-01	3120.34
1991-04-01	3092.11
1991-07-01	3037.48
1991-10-01	3017.53
1992-01-01	2975.85
1992-04-01	2944.84
1992-07-01	2933.50
1992-10-01	2921.41
1993-01-01	2898.63
1993-04-01	2926.70
1993-07-01	2940.26
1993-10-01	2969.29
1994-01-01	2974.24
1994-04-01	3039.69
1994-07-01	3110.68
1994-10-01	3192.23
1995-01-01	3258.64
1995-04-01	3341.58
1995-07-01	3397.72
1995-10-01	3438.46
1996-01-01	3457.65
1996-04-01	3523.80
1996-07-01	3598.73
1996-10-01	3636.70
1997-01-01	3684.06
1997-04-01	3768.68
1997-07-01	3812.12
1997-10-01	3873.88
1998-01-01	3912.04
1998-04-01	3979.54
1998-07-01	4054.37
1998-10-01	4162.03
1999-01-01	4192.06
1999-04-01	4252.85
1999-07-01	4382.76
1999-10-01	4533.81
2000-01-01	4660.97
2000-04-01	4822.84
2000-07-01	4931.04
2000-10-01	5002.16
2001-01-01	5021.49
2001-04-01	5065.46
2001-07-01	5093.29
2001-10-01	5142.99
2002-01-01	5113.05
2002-04-01	5114.26
2002-07-01	5243.46
2002-10-01	5334.63
2003-01-01	5416.86
2003-04-01	5525.05
2003-07-01	5610.57
2003-10-01	5709.39
2004-01-01	5789.85
2004-04-01	5955.58
2004-07-01	6099.51
2004-10-01	6289.70
2005-01-01	6404.87
2005-04-01	6621.93
2005-07-01	6829.64
2005-10-01	6957.03
2006-01-01	7112.83
2006-04-01	7306.20
2006-07-01	7465.66
2006-10-01	7612.82
2007-01-01	7663.38
2007-04-01	7845.02
2007-07-01	8080.90
2007-10-01	8285.04
2008-01-01	8420.64
2008-04-01	8454.62
2008-07-01	8500.72
2008-10-01	8539.20
2009-01-01	8379.52
2009-04-01	8202.83
2009-07-01	7958.63
2009-10-01	7792.40
2010-01-01	8039.57
2010-04-01	7941.16
2010-07-01	7910.56
2010-10-01	7845.00
2011-01-01	7686.29
2011-04-01	7675.59
2011-07-01	7737.53
2011-10-01	7842.98
2012-01-01	7771.67
2012-04-01	7855.73
2012-07-01	7906.63
2012-10-01	8042.90
2013-01-01	7973.84
2013-04-01	8035.31
2013-07-01	8095.00
2013-10-01	8200.40
2014-01-01	8204.72
2014-04-01	8365.81
2014-07-01	8446.84
2014-10-01	8606.34
2015-01-01	8665.15
2015-04-01	8835.37
2015-07-01	8976.67
2015-10-01	9191.31
2016-01-01	9286.56
2016-04-01	9460.71
2016-07-01	9564.89
2016-10-01	9672.63
2017-01-01	9669.71
2017-04-01	9818.68
2017-07-01	9906.16
2017-10-01	10081.39
2018-01-01	10100.43