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 85
1978-01-01 114
1978-04-01 157
1978-07-01 140
1978-10-01 125
1979-01-01 165
1979-04-01 317
1979-07-01 413
1979-10-01 543
1980-01-01 503
1980-04-01 419
1980-07-01 365
1980-10-01 232
1981-01-01 245
1981-04-01 248
1981-07-01 432
1981-10-01 418
1982-01-01 390
1982-04-01 418
1982-07-01 319
1982-10-01 532
1983-01-01 691
1983-04-01 692
1983-07-01 679
1983-10-01 570
1984-01-01 468
1984-04-01 569
1984-07-01 641
1984-10-01 1579
1985-01-01 1682
1985-04-01 1547
1985-07-01 1616
1985-10-01 754
1986-01-01 758
1986-04-01 883
1986-07-01 1071
1986-10-01 1308
1987-01-01 1431
1987-04-01 1565
1987-07-01 1418
1987-10-01 1289
1988-01-01 1239
1988-04-01 1317
1988-07-01 1180
1988-10-01 1003
1989-01-01 843
1989-04-01 1047
1989-07-01 1364
1989-10-01 1726
1990-01-01 1846
1990-04-01 1313
1990-07-01 1111
1990-10-01 862
1991-01-01 584
1991-04-01 504
1991-07-01 571
1991-10-01 766
1992-01-01 695
1992-04-01 1355
1992-07-01 1331
1992-10-01 970
1993-01-01 1018
1993-04-01 646
1993-07-01 767
1993-10-01 933
1994-01-01 892
1994-04-01 765
1994-07-01 893
1994-10-01 928
1995-01-01 991
1995-04-01 669
1995-07-01 622
1995-10-01 776
1996-01-01 1095
1996-04-01 1383
1996-07-01 1015
1996-10-01 975
1997-01-01 868
1997-04-01 693
1997-07-01 741
1997-10-01 769
1998-01-01 804
1998-04-01 1035
1998-07-01 959
1998-10-01 1717
1999-01-01 1912
1999-04-01 2225
1999-07-01 2625
1999-10-01 1659
2000-01-01 1533
2000-04-01 1516
2000-07-01 1485
2000-10-01 1922
2001-01-01 1977
2001-04-01 1734
2001-07-01 2427
2001-10-01 3150
2002-01-01 2717
2002-04-01 2884
2002-07-01 1834
2002-10-01 2826
2003-01-01 3577
2003-04-01 4279
2003-07-01 4696
2003-10-01 4730
2004-01-01 5717
2004-04-01 5696
2004-07-01 6764
2004-10-01 5846
2005-01-01 5341
2005-04-01 6036
2005-07-01 6827
2005-10-01 9369
2006-01-01 11263
2006-04-01 9524
2006-07-01 12543
2006-10-01 12552
2007-01-01 17844
2007-04-01 19131
2007-07-01 17671
2007-10-01 17313
2008-01-01 17743
2008-04-01 18579
2008-07-01 17674
2008-10-01 18871
2009-01-01 17043
2009-04-01 18860
2009-07-01 19637
2009-10-01 16344
2010-01-01 14999
2010-04-01 19452
2010-07-01 22980
2010-10-01 20753
2011-01-01 23461
2011-04-01 22508
2011-07-01 24892
2011-10-01 28475
2012-01-01 29706
2012-04-01 28222
2012-07-01 26460
2012-10-01 31152
2013-01-01 26871
2013-04-01 36312
2013-07-01 40022
2013-10-01 45224
2014-01-01 50127
2014-04-01 39125
2014-07-01 39364
2014-10-01 41007
2015-01-01 37410
2015-04-01 49101
2015-07-01 50197
2015-10-01 50132
2016-01-01 62373
2016-04-01 58830
2016-07-01 60386
2016-10-01 59754
2017-01-01 64536
2017-04-01 63398
2017-07-01 51801
2017-10-01 47790
2018-01-01 37509
2018-04-01 47353