Quarterly Millions of US Dollars
1971-01-01 0
1971-04-01 0
1971-07-01 0
1971-10-01 0
1972-01-01 0
1972-04-01 0
1972-07-01 0
1972-10-01 0
1973-01-01 0
1973-04-01 0
1973-07-01 0
1973-10-01 0
1974-01-01 0
1974-04-01 0
1974-07-01 0
1974-10-01 0
1975-01-01 0
1975-04-01 0
1975-07-01 0
1975-10-01 0
1976-01-01 0
1976-04-01 0
1976-07-01 0
1976-10-01 0
1977-01-01 0
1977-04-01 0
1977-07-01 30
1977-10-01 98
1978-01-01 127
1978-04-01 188
1978-07-01 197
1978-10-01 203
1979-01-01 394
1979-04-01 553
1979-07-01 628
1979-10-01 739
1980-01-01 620
1980-04-01 765
1980-07-01 764
1980-10-01 731
1981-01-01 761
1981-04-01 995
1981-07-01 1442
1981-10-01 1458
1982-01-01 1868
1982-04-01 1633
1982-07-01 1362
1982-10-01 1734
1983-01-01 1523
1983-04-01 1725
1983-07-01 2001
1983-10-01 1822
1984-01-01 1779
1984-04-01 1557
1984-07-01 1548
1984-10-01 3546
1985-01-01 3734
1985-04-01 3952
1985-07-01 4117
1985-10-01 2575
1986-01-01 2895
1986-04-01 2887
1986-07-01 3080
1986-10-01 3182
1987-01-01 3625
1987-04-01 4507
1987-07-01 5045
1987-10-01 5549
1988-01-01 5331
1988-04-01 4548
1988-07-01 4113
1988-10-01 3934
1989-01-01 3333
1989-04-01 4171
1989-07-01 4542
1989-10-01 5120
1990-01-01 5920
1990-04-01 4569
1990-07-01 4082
1990-10-01 3467
1991-01-01 2931
1991-04-01 3306
1991-07-01 3686
1991-10-01 6086
1992-01-01 6886
1992-04-01 7960
1992-07-01 10309
1992-10-01 10107
1993-01-01 9260
1993-04-01 9433
1993-07-01 17675
1993-10-01 17752
1994-01-01 21575
1994-04-01 22668
1994-07-01 24486
1994-10-01 24614
1995-01-01 21087
1995-04-01 24392
1995-07-01 29924
1995-10-01 33555
1996-01-01 34218
1996-04-01 33568
1996-07-01 35729
1996-10-01 41539
1997-01-01 40668
1997-04-01 43519
1997-07-01 40685
1997-10-01 60939
1998-01-01 64349
1998-04-01 66671
1998-07-01 63025
1998-10-01 42809
1999-01-01 40755
1999-04-01 47432
1999-07-01 51211
1999-10-01 51059
2000-01-01 53144
2000-04-01 85955
2000-07-01 87199
2000-10-01 95124
2001-01-01 95501
2001-04-01 63627
2001-07-01 62351
2001-10-01 57831
2002-01-01 64584
2002-04-01 72058
2002-07-01 74088
2002-10-01 75232
2003-01-01 74551
2003-04-01 72366
2003-07-01 75200
2003-10-01 73958
2004-01-01 67679
2004-04-01 99535
2004-07-01 107112
2004-10-01 112695
2005-01-01 112585
2005-04-01 86607
2005-07-01 73986
2005-10-01 77702
2006-01-01 81680
2006-04-01 70314
2006-07-01 81318
2006-10-01 78109
2007-01-01 88127
2007-04-01 91373
2007-07-01 85311
2007-10-01 95406
2008-01-01 97692
2008-04-01 103755
2008-07-01 106635
2008-10-01 95146
2009-01-01 99533
2009-04-01 95850
2009-07-01 99922
2009-10-01 96508
2010-01-01 89655
2010-04-01 94151
2010-07-01 104454
2010-10-01 102323
2011-01-01 109242
2011-04-01 112677
2011-07-01 105009
2011-10-01 115823
2012-01-01 123227
2012-04-01 115718
2012-07-01 120979
2012-10-01 116039
2013-01-01 129312
2013-04-01 153339
2013-07-01 170812
2013-10-01 182563
2014-01-01 179159
2014-04-01 164104
2014-07-01 162410
2014-10-01 188006
2015-01-01 186183
2015-04-01 192346
2015-07-01 194884
2015-10-01 172188
2016-01-01 176340
2016-04-01 213315
2016-07-01 206794
2016-10-01 214115
2017-01-01 214861
2017-04-01 200707
2017-07-01 203182
2017-10-01 195290
2018-01-01 198654
2018-04-01 217244