Quarterly Millions of US Dollars
1971-01-01 86
1971-04-01 51
1971-07-01 24
1971-10-01 51
1972-01-01 171
1972-04-01 78
1972-07-01 117
1972-10-01 221
1973-01-01 65
1973-04-01 300
1973-07-01 54
1973-10-01 414
1974-01-01 109
1974-04-01 424
1974-07-01 65
1974-10-01 72
1975-01-01 103
1975-04-01 326
1975-07-01 138
1975-10-01 111
1976-01-01 100
1976-04-01 201
1976-07-01 80
1976-10-01 239
1977-01-01 218
1977-04-01 195
1977-07-01 142
1977-10-01 243
1978-01-01 387
1978-04-01 478
1978-07-01 338
1978-10-01 411
1979-01-01 172
1979-04-01 173
1979-07-01 95
1979-10-01 -35
1980-01-01 -18
1980-04-01 -43
1980-07-01 109
1980-10-01 -90
1981-01-01 18
1981-04-01 -75
1981-10-01 -48
1982-01-01 -21
1982-04-01 56
1982-07-01 -66
1982-10-01 94
1983-01-01 134
1983-04-01 26
1983-07-01 -20
1983-10-01 -29
1984-01-01 43
1984-04-01 234
1984-07-01 139
1984-10-01 340
1985-01-01 75
1985-04-01 693
1985-07-01 -24
1985-10-01 -1083
1986-01-01 -209
1986-04-01 -83
1986-07-01 63
1986-10-01 -199
1987-01-01 -240
1987-04-01 -215
1987-07-01 -306
1987-10-01 -509
1988-01-01 -198
1988-04-01 -176
1988-07-01 -16
1988-10-01 18
1989-01-01 -230
1989-04-01 -294
1989-07-01 -29
1989-10-01 -80
1990-01-01 -182
1990-04-01 -764
1990-07-01 -338
1990-10-01 -320
1991-01-01 -246
1991-04-01 835
1991-07-01 -170
1991-10-01 114
1992-01-01 2409
1992-04-01 144
1992-07-01 -255
1992-10-01 -276
1993-01-01 -66
1993-04-01 -750
1993-07-01 6
1993-10-01 708
1994-01-01 742
1994-04-01 -422
1994-07-01 -32
1994-10-01 660
1995-01-01 406
1995-04-01 169
1995-07-01 268
1995-10-01 498
1996-01-01 161
1996-04-01 133
1996-07-01 358
1996-10-01 2329
1997-01-01 -54
1997-04-01 701
1997-07-01 1099
1997-10-01 273
1998-01-01 1797
1998-04-01 427
1998-07-01 338
1998-10-01 73
1999-01-01 686
1999-04-01 2825
1999-07-01 203
1999-10-01 94
2000-01-01 1341
2000-04-01 1840
2000-07-01 859
2000-10-01 -131
2001-01-01 486
2001-04-01 890
2001-07-01 1860
2001-10-01 -36
2002-01-01 634
2002-04-01 1637
2002-07-01 628
2002-10-01 -319
2003-01-01 374
2003-04-01 2202
2003-07-01 475
2003-10-01 146
2004-01-01 2351
2004-04-01 2511
2004-07-01 -273
2004-10-01 2296
2005-01-01 1158
2005-04-01 3187
2005-07-01 4963
2005-10-01 3584
2006-01-01 10549
2006-04-01 5397
2006-07-01 3394
2006-10-01 14412
2007-01-01 4951
2007-04-01 8902
2007-07-01 4669
2007-10-01 5008
2008-01-01 793
2008-04-01 7247
2008-07-01 1093
2008-10-01 -4118
2009-01-01 -794
2009-04-01 8161
2009-07-01 9556
2009-10-01 2192
2010-01-01 2503
2010-04-01 1946
2010-07-01 5024
2010-10-01 5109
2011-01-01 6013
2011-04-01 -2203
2011-07-01 -882
2011-10-01 12600
2012-01-01 4467
2012-04-01 -1219
2012-07-01 6133
2012-10-01 13479
2013-01-01 5045
2013-04-01 2271
2013-07-01 6310
2013-10-01 5917
2014-01-01 3655
2014-04-01 12096
2014-07-01 5025
2014-10-01 8475
2015-01-01 5014
2015-04-01 13234
2015-07-01 1667
2015-10-01 7629
2016-01-01 1876
2016-04-01 24422
2016-07-01 4643
2016-10-01 43448
2017-01-01 18674
2017-04-01 24718
2017-07-01 6954
2017-10-01 29347
2018-01-01 19666
2018-04-01 39901