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 0
1977-10-01 0
1978-01-01 0
1978-04-01 0
1978-07-01 17
1978-10-01 62
1979-01-01 61
1979-04-01 60
1979-07-01 96
1979-10-01 108
1980-01-01 95
1980-04-01 106
1980-07-01 146
1980-10-01 85
1981-01-01 78
1981-04-01 100
1981-07-01 27
1981-10-01 27
1982-01-01 60
1982-04-01 49
1982-07-01 70
1982-10-01 75
1983-01-01 70
1983-04-01 162
1983-07-01 137
1983-10-01 133
1984-01-01 106
1984-04-01 0
1984-07-01 20
1984-10-01 197
1985-01-01 414
1985-04-01 416
1985-07-01 411
1985-10-01 463
1986-01-01 568
1986-04-01 644
1986-07-01 779
1986-10-01 842
1987-01-01 838
1987-04-01 826
1987-07-01 1119
1987-10-01 898
1988-01-01 1145
1988-04-01 1059
1988-07-01 636
1988-10-01 743
1989-01-01 300
1989-04-01 271
1989-07-01 667
1989-10-01 554
1990-01-01 540
1990-04-01 549
1990-07-01 224
1990-10-01 586
1991-01-01 403
1991-04-01 829
1991-07-01 832
1991-10-01 762
1992-01-01 947
1992-04-01 882
1992-07-01 1006
1992-10-01 1126
1993-01-01 1615
1993-04-01 1290
1993-07-01 1769
1993-10-01 1906
1994-01-01 1836
1994-04-01 2079
1994-07-01 2026
1994-10-01 2020
1995-01-01 3275
1995-04-01 3086
1995-07-01 2757
1995-10-01 2275
1996-01-01 1890
1996-04-01 3319
1996-07-01 2406
1996-10-01 4239
1997-01-01 4998
1997-04-01 6750
1997-07-01 8712
1997-10-01 9199
1998-01-01 11884
1998-04-01 13306
1998-07-01 17255
1998-10-01 17037
1999-01-01 19926
1999-04-01 21544
1999-07-01 21436
1999-10-01 25643
2000-01-01 26259
2000-04-01 29537
2000-07-01 27422
2000-10-01 30686
2001-01-01 32282
2001-04-01 35285
2001-07-01 36333
2001-10-01 40615
2002-01-01 42580
2002-04-01 46517
2002-07-01 43999
2002-10-01 44438
2003-01-01 49884
2003-04-01 56836
2003-07-01 55501
2003-10-01 61396
2004-01-01 70262
2004-04-01 68860
2004-07-01 77635
2004-10-01 102421
2005-01-01 107792
2005-04-01 106292
2005-07-01 112266
2005-10-01 123618
2006-01-01 139427
2006-04-01 148621
2006-07-01 159242
2006-10-01 175226
2007-01-01 194481
2007-04-01 203737
2007-07-01 220553
2007-10-01 230431
2008-01-01 245907
2008-04-01 250992
2008-07-01 239862
2008-10-01 217851
2009-01-01 211131
2009-04-01 216253
2009-07-01 263524
2009-10-01 239034
2010-01-01 220718
2010-04-01 198109
2010-07-01 174906
2010-10-01 158723
2011-01-01 128208
2011-04-01 141857
2011-07-01 133754
2011-10-01 146924
2012-01-01 189904
2012-04-01 179164
2012-07-01 172078
2012-10-01 172178
2013-01-01 152693
2013-04-01 138710
2013-07-01 147618
2013-10-01 186629
2014-01-01 184140
2014-04-01 184979
2014-07-01 173523
2014-10-01 130947
2015-01-01 95432
2015-04-01 95006
2015-07-01 82003
2015-10-01 94448
2016-01-01 123172
2016-04-01 125825
2016-07-01 121076
2016-10-01 109295
2017-01-01 91008
2017-04-01 78672
2017-07-01 85813
2017-10-01 90017
2018-01-01 80862
2018-04-01 75994