Quarterly Billions of US Dollars
1966-01-01 0.08
1966-04-01 0.03
1966-07-01 0.02
1967-01-01 0.01
1967-04-01 0.11
1967-10-01 0.02
1968-01-01 0.30
1968-04-01 0.49
1968-07-01 0.17
1968-10-01 0.09
1969-01-01 0.23
1969-04-01 0.03
1969-07-01 0.03
1969-10-01 0.16
1970-01-01 0.03
1970-04-01 0.02
1970-07-01 0.08
1970-10-01 0.04
1971-01-01 0.83
1971-04-01 0.30
1971-07-01 0.24
1971-10-01 0.67
1972-01-01 1.59
1972-04-01 2.11
1972-07-01 1.53
1972-10-01 2.16
1973-01-01 1.67
1973-04-01 1.16
1973-07-01 1.17
1973-10-01 1.37
1974-01-01 1.00
1974-04-01 1.23
1974-07-01 1.60
1974-10-01 1.94
1975-01-01 3.58
1975-04-01 4.62
1975-07-01 2.81
1975-10-01 4.63
1976-01-01 7.13
1976-04-01 5.43
1976-07-01 4.63
1976-10-01 6.44
1977-01-01 5.90
1977-04-01 6.28
1977-07-01 5.12
1977-10-01 5.88
1978-01-01 6.58
1978-04-01 6.96
1978-07-01 4.76
1978-10-01 4.64
1979-01-01 8.05
1979-04-01 6.76
1979-07-01 6.19
1979-10-01 5.86
1980-01-01 5.53
1980-04-01 8.91
1980-07-01 6.36
1980-10-01 7.23
1981-01-01 7.24
1981-04-01 8.67
1981-07-01 8.46
1981-10-01 12.87
1982-01-01 18.04
1982-04-01 14.31
1982-07-01 14.30
1982-10-01 13.88
1983-01-01 16.94
1983-04-01 13.65
1983-07-01 9.43
1983-10-01 16.26
1984-01-01 23.21
1984-04-01 17.97
1984-07-01 19.60
1984-10-01 28.06
1985-01-01 29.44
1985-04-01 29.33
1985-07-01 27.34
1985-10-01 34.69
1986-01-01 41.72
1986-04-01 47.50
1986-07-01 47.05
1986-10-01 41.42
1987-01-01 46.60
1987-04-01 38.79
1987-07-01 33.75
1987-10-01 21.88
1988-01-01 45.86
1988-04-01 50.52
1988-07-01 47.91
1988-10-01 36.05
1989-01-01 62.99
1989-04-01 59.36
1989-07-01 44.72
1989-10-01 51.47
1990-01-01 51.74
1990-04-01 40.69
1990-07-01 51.02
1990-10-01 48.79
1991-01-01 71.82
1991-04-01 68.56
1991-07-01 59.28
1991-10-01 52.94
1992-01-01 74.27
1992-04-01 63.59
1992-07-01 57.65
1992-10-01 60.45
1993-01-01 104.83
1993-04-01 75.62
1993-07-01 96.59
1993-10-01 87.59
1994-01-01 108.35
1994-04-01 86.86
1994-07-01 97.08
1994-10-01 87.00
1995-01-01 96.55
1995-04-01 102.03
1995-07-01 113.18
1995-10-01 103.97
1996-01-01 162.28
1996-04-01 190.12
1996-07-01 193.46
1996-10-01 166.67
1997-01-01 185.48
1997-04-01 160.57
1997-07-01 177.10
1997-10-01 129.88
1998-01-01 214.21
1998-04-01 213.47
1998-07-01 160.92
1998-10-01 160.20
1999-01-01 284.59
1999-04-01 295.89
1999-07-01 283.71
1999-10-01 213.85
2000-01-01 287.81
2000-04-01 304.92
2000-07-01 318.38
2000-10-01 306.10
2001-01-01 496.99
2001-04-01 466.15
2001-07-01 313.01
2001-10-01 419.84
2002-01-01 418.50
2002-04-01 400.32
2002-07-01 288.36
2002-10-01 340.58
2003-01-01 523.04
2003-04-01 546.00
2003-07-01 468.40
2003-10-01 527.91
2004-01-01 684.04
2004-04-01 554.61
2004-07-01 532.22
2004-10-01 593.78
2005-01-01 698.91
2005-04-01 682.34
2005-07-01 551.74
2005-10-01 748.96
2006-01-01 838.76
2006-04-01 863.02
2006-07-01 813.97
2006-10-01 1079.59
2007-01-01 1129.24
2007-04-01 1204.29
2007-07-01 684.13
2007-10-01 690.78
2008-01-01 728.66
2008-04-01 1247.46
2008-07-01 764.38
2008-10-01 988.30
2009-01-01 979.98
2009-04-01 1011.90
2009-07-01 751.89
2009-10-01 699.60
2010-01-01 848.74
2010-04-01 580.58
2010-07-01 689.84
2010-10-01 585.05
2011-01-01 864.22
2011-04-01 742.81
2011-07-01 502.65
2011-10-01 558.35
2012-01-01 932.60
2012-04-01 569.91
2012-07-01 639.46
2012-10-01 605.72
2013-01-01 662.46
2013-04-01 645.27
2013-07-01 610.27
2013-10-01 716.58
2014-01-01 795.45
2014-04-01 877.88
2014-07-01 680.23
2014-10-01 580.15
2015-01-01 799.43
2015-04-01 646.08