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
1978-04-01 154
1978-07-01 134
1978-10-01 82
1979-01-01 157
1979-04-01 294
1979-07-01 378
1979-10-01 525
1980-01-01 413
1980-04-01 280
1980-07-01 208
1980-10-01 70
1981-01-01 118
1981-04-01 182
1981-07-01 434
1981-10-01 455
1982-01-01 421
1982-04-01 372
1982-07-01 258
1982-10-01 438
1983-01-01 472
1983-04-01 521
1983-07-01 570
1983-10-01 439
1984-01-01 418
1984-04-01 357
1984-07-01 233
1984-10-01 882
1985-01-01 961
1985-04-01 1056
1985-07-01 1147
1985-10-01 745
1986-01-01 902
1986-04-01 860
1986-07-01 1045
1986-10-01 1042
1987-01-01 958
1987-04-01 1293
1987-07-01 1649
1987-10-01 1772
1988-01-01 1696
1988-04-01 1492
1988-07-01 1150
1988-10-01 848
1989-01-01 939
1989-04-01 1071
1989-07-01 1008
1989-10-01 1090
1990-01-01 1956
1990-04-01 1583
1990-07-01 1706
1990-10-01 1676
1991-01-01 1075
1991-04-01 1319
1991-07-01 1330
1991-10-01 2025
1992-01-01 2154
1992-04-01 2258
1992-07-01 2840
1992-10-01 2973
1993-01-01 2566
1993-04-01 2594
1993-07-01 4899
1993-10-01 4909
1994-01-01 6484
1994-04-01 6980
1994-07-01 7208
1994-10-01 6038
1995-01-01 3616
1995-04-01 4656
1995-07-01 7016
1995-10-01 9068
1996-01-01 10414
1996-04-01 10558
1996-07-01 8992
1996-10-01 9208
1997-01-01 9559
1997-04-01 10789
1997-07-01 12080
1997-10-01 11349
1998-01-01 12184
1998-04-01 11999
1998-07-01 10006
1998-10-01 12300
1999-01-01 10559
1999-04-01 10599
1999-07-01 10426
1999-10-01 10196
2000-01-01 11417
2000-04-01 12888
2000-07-01 13163
2000-10-01 12188
2001-01-01 13046
2001-04-01 13857
2001-07-01 15655
2001-10-01 16851
2002-01-01 16473
2002-04-01 17576
2002-07-01 16203
2002-10-01 16815
2003-01-01 17761
2003-04-01 21113
2003-07-01 22786
2003-10-01 24069
2004-01-01 23627
2004-04-01 20768
2004-07-01 19980
2004-10-01 17659
2005-01-01 17846
2005-04-01 16223
2005-07-01 15437
2005-10-01 17053
2006-01-01 18581
2006-04-01 20895
2006-07-01 24126
2006-10-01 24052
2007-01-01 22771
2007-04-01 22374
2007-07-01 21238
2007-10-01 22474
2008-01-01 24667
2008-04-01 22819
2008-07-01 21695
2008-10-01 19567
2009-01-01 16601
2009-04-01 14154
2009-07-01 13303
2009-10-01 14512
2010-01-01 19647
2010-04-01 24968
2010-07-01 27561
2010-10-01 26328
2011-01-01 25849
2011-04-01 28883
2011-07-01 27213
2011-10-01 33911
2012-01-01 38014
2012-04-01 35407
2012-07-01 41255
2012-10-01 39610
2013-01-01 33217
2013-04-01 42884
2013-07-01 45354
2013-10-01 47989
2014-01-01 51787
2014-04-01 42544
2014-07-01 33848
2014-10-01 34317
2015-01-01 32969
2015-04-01 36762
2015-07-01 41397
2015-10-01 44505
2016-01-01 48894
2016-04-01 58357
2016-07-01 55173
2016-10-01 55408
2017-01-01 57985
2017-04-01 60351
2017-07-01 64110
2017-10-01 57537
2018-01-01 53263
2018-04-01 50905