Quarterly Millions of US Dollars
1987-04-01 21
1987-07-01 23
1987-10-01 24
1988-01-01 35
1988-04-01 52
1988-07-01 45
1988-10-01 16
1989-01-01 60
1989-04-01 14
1989-07-01 37
1989-10-01 64
1990-01-01 63
1990-04-01 40
1990-07-01 66
1990-10-01 38
1991-01-01 135
1991-04-01 103
1991-07-01 117
1991-10-01 2
1992-01-01 187
1992-04-01 49
1992-07-01 120
1992-10-01 -53
1993-01-01 170
1993-04-01 55
1993-07-01 96
1993-10-01 33
1994-01-01 71
1994-04-01 24
1994-07-01 86
1994-10-01 53
1995-01-01 207
1995-04-01 98
1995-07-01 41
1995-10-01 0
1996-01-01 234
1996-04-01 114
1996-07-01 74
1996-10-01 108
1997-01-01 79
1997-04-01 103
1997-07-01 117
1997-10-01 118
1998-01-01 163
1998-04-01 61
1998-07-01 139
1998-10-01 108
1999-01-01 232
1999-04-01 124
1999-07-01 178
1999-10-01 115
2000-01-01 16
2000-04-01 204
2000-07-01 105
2000-10-01 201
2001-01-01 -200
2001-04-01 210
2001-07-01 170
2001-10-01 191
2002-01-01 258
2002-04-01 383
2002-07-01 79
2002-10-01 98
2003-01-01 458
2003-04-01 79
2003-07-01 335
2003-10-01 271
2004-01-01 164
2004-04-01 511
2004-07-01 85
2004-10-01 496
2005-01-01 257
2005-04-01 321
2005-07-01 759
2005-10-01 38
2006-01-01 515
2006-04-01 573
2006-07-01 259
2006-10-01 981
2007-01-01 340
2007-04-01 645
2007-07-01 588
2007-10-01 1381
2008-01-01 -572
2008-04-01 2542
2008-07-01 217
2008-10-01 -3203
2009-01-01 -325
2009-04-01 91
2009-07-01 100
2009-10-01 149
2010-01-01 130
2010-04-01 -11
2010-07-01 16
2010-10-01 104
2011-01-01 -40
2011-04-01 211
2011-07-01 56
2011-10-01 1084
2012-01-01 143
2012-04-01 96
2012-07-01 -116
2012-10-01 17
2013-01-01 115
2013-04-01 37
2013-07-01 66
2013-10-01 -27
2014-01-01 -31
2014-04-01 -42
2014-07-01 -145
2014-10-01 -67
2015-01-01 0
2015-04-01 4
2015-07-01 205
2015-10-01 62
2016-01-01 281
2016-04-01 65
2016-07-01 62
2016-10-01 73
2017-01-01 231
2017-04-01 304
2017-07-01 158
2017-10-01 -30
2018-01-01 454