Quarterly Millions of US Dollars
1968-07-01 0
1968-10-01 0
1969-01-01 0
1969-04-01 0
1969-07-01 0
1969-10-01 0
1970-01-01 0
1970-04-01 0
1970-07-01 0
1970-10-01 0
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 18
1978-07-01 44
1978-10-01 44
1979-01-01 44
1979-04-01 50
1979-07-01 26
1979-10-01 26
1980-01-01 24
1980-04-01 4
1980-07-01 4
1980-10-01 57
1981-01-01 82
1981-04-01 79
1981-07-01 79
1981-10-01 25
1982-01-01 63
1982-04-01 97
1982-07-01 97
1982-10-01 98
1983-01-01 141
1983-04-01 238
1983-07-01 333
1983-10-01 366
1984-01-01 305
1984-04-01 164
1984-07-01 154
1984-10-01 402
1985-01-01 411
1985-04-01 482
1985-07-01 564
1985-10-01 334
1986-01-01 311
1986-04-01 331
1986-07-01 222
1986-10-01 190
1987-01-01 758
1987-04-01 1158
1987-07-01 1241
1987-10-01 1478
1988-01-01 1194
1988-04-01 1022
1988-07-01 1249
1988-10-01 1325
1989-01-01 1144
1989-04-01 1352
1989-07-01 1516
1989-10-01 2076
1990-01-01 2027
1990-04-01 1610
1990-07-01 1517
1990-10-01 1054
1991-01-01 1708
1991-04-01 1915
1991-07-01 1823
1991-10-01 3408
1992-01-01 3114
1992-04-01 3522
1992-07-01 5470
1992-10-01 5199
1993-01-01 5026
1993-04-01 5192
1993-07-01 4538
1993-10-01 4061
1994-01-01 4481
1994-04-01 5158
1994-07-01 5204
1994-10-01 5693
1995-01-01 6664
1995-04-01 7923
1995-07-01 8537
1995-10-01 8513
1996-01-01 7788
1996-04-01 7898
1996-07-01 8393
1996-10-01 11911
1997-01-01 12528
1997-04-01 13854
1997-07-01 14410
1997-10-01 13429
1998-01-01 14094
1998-04-01 16557
1998-07-01 17634
1998-10-01 22191
1999-01-01 22050
1999-04-01 22346
1999-07-01 21932
1999-10-01 18798
2000-01-01 20126
2000-04-01 19820
2000-07-01 21704
2000-10-01 23165
2001-01-01 22943
2001-04-01 24969
2001-07-01 23614
2001-10-01 25434
2002-01-01 22955
2002-04-01 23274
2002-07-01 21783
2002-10-01 21482
2003-01-01 22589
2003-04-01 23798
2003-07-01 26614
2003-10-01 27201
2004-01-01 24897
2004-04-01 21495
2004-07-01 22701
2004-10-01 25965
2005-01-01 27432
2005-04-01 30737
2005-07-01 27012
2005-10-01 27708
2006-01-01 31366
2006-04-01 35979
2006-07-01 41899
2006-10-01 41941
2007-01-01 42273
2007-04-01 42555
2007-07-01 41706
2007-10-01 44358
2008-01-01 49574
2008-04-01 51621
2008-07-01 51407
2008-10-01 48561
2009-01-01 48225
2009-04-01 50353
2009-07-01 53564
2009-10-01 51502
2010-01-01 48284
2010-04-01 52496
2010-07-01 55047
2010-10-01 57807
2011-01-01 67367
2011-04-01 74039
2011-07-01 73968
2011-10-01 86262
2012-01-01 91439
2012-04-01 91160
2012-07-01 96387
2012-10-01 90026
2013-01-01 102260
2013-04-01 123388
2013-07-01 145040
2013-10-01 158216
2014-01-01 180458
2014-04-01 180196
2014-07-01 184414
2014-10-01 196091
2015-01-01 197594
2015-04-01 205785
2015-07-01 195116
2015-10-01 210840
2016-01-01 205689
2016-04-01 230332
2016-07-01 239303
2016-10-01 242944
2017-01-01 254102
2017-04-01 262301
2017-07-01 268990
2017-10-01 289673
2018-01-01 297710
2018-04-01 317067