Quarterly Millions of US Dollars
1978-01-01 15
1978-04-01 15
1978-07-01 15
1978-10-01 15
1979-01-01 15
1979-04-01 15
1979-07-01 15
1979-10-01 15
1980-01-01 15
1980-04-01 15
1980-07-01 15
1980-10-01 15
1981-01-01 15
1981-04-01 59
1981-07-01 58
1981-10-01 61
1982-01-01 55
1982-04-01 54
1982-07-01 52
1982-10-01 58
1983-01-01 57
1983-04-01 57
1983-07-01 57
1983-10-01 58
1984-01-01 60
1984-04-01 57
1984-07-01 56
1984-10-01 55
1985-01-01 55
1985-04-01 55
1985-07-01 61
1985-10-01 65
1986-01-01 71
1986-04-01 76
1986-07-01 80
1986-10-01 78
1987-01-01 83
1987-04-01 83
1987-07-01 83
1987-10-01 97
1988-01-01 96
1988-04-01 90
1988-07-01 89
1988-10-01 95
1989-01-01 90
1989-04-01 85
1989-07-01 87
1989-10-01 85
1990-01-01 63
1990-04-01 66
1990-07-01 72
1990-10-01 95
1991-01-01 92
1991-04-01 108
1991-07-01 111
1991-10-01 266
1992-01-01 406
1992-04-01 541
1992-07-01 872
1992-10-01 876
1993-01-01 957
1993-04-01 1060
1993-07-01 1916
1993-10-01 3571
1994-01-01 4268
1994-04-01 4397
1994-07-01 4482
1994-10-01 5213
1995-01-01 5041
1995-04-01 4994
1995-07-01 5091
1995-10-01 5679
1996-01-01 5653
1996-04-01 6260
1996-07-01 6576
1996-10-01 6401
1997-01-01 7773
1997-04-01 8572
1997-07-01 10268
1997-10-01 9988
1998-01-01 10687
1998-04-01 12950
1998-07-01 12969
1998-10-01 12925
1999-01-01 12880
1999-04-01 13591
1999-07-01 13951
1999-10-01 13310
2000-01-01 13368
2000-04-01 13857
2000-07-01 14135
2000-10-01 12979
2001-01-01 12905
2001-04-01 12573
2001-07-01 12518
2001-10-01 11910
2002-01-01 11262
2002-04-01 11106
2002-07-01 10161
2002-10-01 10002
2003-01-01 9335
2003-04-01 8444
2003-07-01 7603
2003-10-01 7779
2004-01-01 6747
2004-04-01 6468
2004-07-01 5836
2004-10-01 5857
2005-01-01 5893
2005-04-01 5347
2005-07-01 5309
2005-10-01 5625
2006-01-01 5704
2006-04-01 5529
2006-07-01 5852
2006-10-01 6094
2007-01-01 5593
2007-04-01 6525
2007-07-01 6239
2007-10-01 6945
2008-01-01 6641
2008-04-01 5366
2008-07-01 5031
2008-10-01 5031
2009-01-01 4586
2009-04-01 4138
2009-07-01 3938
2009-10-01 3859
2010-01-01 3859
2010-04-01 4335
2010-07-01 4610
2010-10-01 5023
2011-01-01 5405
2011-04-01 5545
2011-07-01 5628
2011-10-01 5580
2012-01-01 5170
2012-04-01 5183
2012-07-01 5008
2012-10-01 4996
2013-01-01 4896
2013-04-01 4889
2013-07-01 4889
2013-10-01 5339
2014-01-01 5241
2014-04-01 6241
2014-07-01 5994
2014-10-01 5718
2015-01-01 6218
2015-04-01 7718
2015-07-01 7776
2015-10-01 7876
2016-01-01 9236
2016-04-01 9854
2016-07-01 12109
2016-10-01 12256
2017-01-01 14012
2017-04-01 14164
2017-07-01 14944
2017-10-01 17005
2018-01-01 18229
2018-04-01 18503