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 19
1978-10-01 46
1979-01-01 68
1979-04-01 200
1979-07-01 192
1979-10-01 161
1980-01-01 232
1980-04-01 108
1980-07-01 108
1980-10-01 108
1981-01-01 0
1981-04-01 0
1981-07-01 15
1981-10-01 15
1982-01-01 15
1982-04-01 56
1982-07-01 40
1982-10-01 42
1983-01-01 41
1983-04-01 0
1983-07-01 30
1983-10-01 30
1984-01-01 30
1984-04-01 30
1984-07-01 37
1984-10-01 489
1985-01-01 654
1985-04-01 805
1985-07-01 773
1985-10-01 855
1986-01-01 708
1986-04-01 711
1986-07-01 755
1986-10-01 464
1987-01-01 678
1987-04-01 744
1987-07-01 768
1987-10-01 586
1988-01-01 358
1988-04-01 346
1988-07-01 802
1988-10-01 1008
1989-01-01 1254
1989-04-01 1691
1989-07-01 1317
1989-10-01 1444
1990-01-01 1439
1990-04-01 1075
1990-07-01 998
1990-10-01 1208
1991-01-01 964
1991-04-01 1087
1991-07-01 1360
1991-10-01 1386
1992-01-01 1652
1992-04-01 1626
1992-07-01 2209
1992-10-01 2686
1993-01-01 2863
1993-04-01 3655
1993-07-01 4428
1993-10-01 4017
1994-01-01 4148
1994-04-01 3329
1994-07-01 3233
1994-10-01 3164
1995-01-01 5469
1995-04-01 6955
1995-07-01 7046
1995-10-01 6924
1996-01-01 8097
1996-04-01 8886
1996-07-01 7908
1996-10-01 11126
1997-01-01 12296
1997-04-01 16000
1997-07-01 15347
1997-10-01 15344
1998-01-01 15404
1998-04-01 14979
1998-07-01 16461
1998-10-01 16678
1999-01-01 18673
1999-04-01 18475
1999-07-01 20800
1999-10-01 20335
2000-01-01 20236
2000-04-01 22856
2000-07-01 22139
2000-10-01 28377
2001-01-01 27374
2001-04-01 27204
2001-07-01 22994
2001-10-01 21241
2002-01-01 18171
2002-04-01 22020
2002-07-01 20779
2002-10-01 24379
2003-01-01 26012
2003-04-01 25079
2003-07-01 25772
2003-10-01 26417
2004-01-01 32995
2004-04-01 39716
2004-07-01 44354
2004-10-01 58190
2005-01-01 61569
2005-04-01 62633
2005-07-01 70408
2005-10-01 73225
2006-01-01 75589
2006-04-01 76267
2006-07-01 70687
2006-10-01 79047
2007-01-01 81983
2007-04-01 71022
2007-07-01 87479
2007-10-01 79743
2008-01-01 93320
2008-04-01 99632
2008-07-01 83735
2008-10-01 61237
2009-01-01 62007
2009-04-01 71850
2009-07-01 70603
2009-10-01 68486
2010-01-01 64454
2010-04-01 63816
2010-07-01 59233
2010-10-01 53438
2011-01-01 64430
2011-04-01 65981
2011-07-01 74010
2011-10-01 62141
2012-01-01 69293
2012-04-01 64587
2012-07-01 77193
2012-10-01 82075
2013-01-01 66126
2013-04-01 66823
2013-07-01 51399
2013-10-01 54574
2014-01-01 66297
2014-04-01 72231
2014-07-01 79326
2014-10-01 74932
2015-01-01 66425
2015-04-01 66609
2015-07-01 71106
2015-10-01 64787
2016-01-01 77464
2016-04-01 88560
2016-07-01 84509
2016-10-01 94793
2017-01-01 75459
2017-04-01 77234
2017-07-01 68049
2017-10-01 70469
2018-01-01 78361
2018-04-01 66773