Quarterly Millions of US Dollars
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 0
1978-10-01 10
1979-01-01 85
1979-04-01 85
1979-07-01 85
1979-10-01 75
1980-01-01 50
1980-04-01 100
1980-07-01 100
1980-10-01 100
1981-01-01 65
1981-04-01 356
1981-07-01 358
1981-10-01 387
1982-01-01 756
1982-04-01 468
1982-07-01 460
1982-10-01 531
1983-01-01 244
1983-04-01 340
1983-07-01 475
1983-10-01 493
1984-01-01 559
1984-04-01 396
1984-07-01 284
1984-10-01 673
1985-01-01 587
1985-04-01 747
1985-07-01 816
1985-10-01 519
1986-01-01 773
1986-04-01 664
1986-07-01 746
1986-10-01 744
1987-01-01 554
1987-04-01 767
1987-07-01 991
1987-10-01 1171
1988-01-01 1313
1988-04-01 960
1988-07-01 664
1988-10-01 845
1989-01-01 550
1989-04-01 845
1989-07-01 999
1989-10-01 605
1990-01-01 683
1990-04-01 402
1990-07-01 225
1990-10-01 246
1991-01-01 157
1991-04-01 169
1991-07-01 176
1991-10-01 288
1992-01-01 485
1992-04-01 489
1992-07-01 605
1992-10-01 1013
1993-01-01 802
1993-04-01 918
1993-07-01 1339
1993-10-01 934
1994-01-01 1292
1994-04-01 1427
1994-07-01 2111
1994-10-01 1708
1995-01-01 1778
1995-04-01 3981
1995-07-01 4147
1995-10-01 4711
1996-01-01 4233
1996-04-01 3033
1996-07-01 9663
1996-10-01 11173
1997-01-01 10971
1997-04-01 11047
1997-07-01 4690
1997-10-01 26135
1998-01-01 25980
1998-04-01 26233
1998-07-01 25849
1998-10-01 3694
1999-01-01 4398
1999-04-01 11543
1999-07-01 12813
1999-10-01 15037
2000-01-01 17525
2000-04-01 47257
2000-07-01 50333
2000-10-01 57166
2001-01-01 55697
2001-04-01 20138
2001-07-01 19094
2001-10-01 10147
2002-01-01 21625
2002-04-01 28066
2002-07-01 31512
2002-10-01 32624
2003-01-01 22983
2003-04-01 20416
2003-07-01 18883
2003-10-01 18664
2004-01-01 17958
2004-04-01 54475
2004-07-01 59012
2004-10-01 62195
2005-01-01 65407
2005-04-01 36068
2005-07-01 29314
2005-10-01 28247
2006-01-01 27164
2006-04-01 12445
2006-07-01 14894
2006-10-01 14528
2007-01-01 17409
2007-04-01 17640
2007-07-01 14891
2007-10-01 20954
2008-01-01 15098
2008-04-01 19379
2008-07-01 17673
2008-10-01 11840
2009-01-01 15767
2009-04-01 11309
2009-07-01 14006
2009-10-01 13866
2010-01-01 10464
2010-04-01 10942
2010-07-01 12463
2010-10-01 11004
2011-01-01 12875
2011-04-01 10510
2011-07-01 8513
2011-10-01 8305
2012-01-01 6774
2012-04-01 9002
2012-07-01 9416
2012-10-01 9003
2013-01-01 8607
2013-04-01 6349
2013-07-01 6202
2013-10-01 12761
2014-01-01 16272
2014-04-01 18690
2014-07-01 21904
2014-10-01 18227
2015-01-01 14237
2015-04-01 12902
2015-07-01 11934
2015-10-01 9351
2016-01-01 12809
2016-04-01 32925
2016-07-01 29198
2016-10-01 33546
2017-01-01 31926
2017-04-01 12985
2017-07-01 14072
2017-10-01 9776
2018-01-01 8372
2018-04-01 11194