Quarterly Millions of US Dollars
1980-07-01 0
1980-10-01 0
1981-01-01 0
1981-04-01 0
1981-07-01 0
1981-10-01 0
1982-01-01 0
1982-04-01 0
1982-07-01 0
1982-10-01 0
1983-01-01 0
1983-04-01 0
1983-07-01 0
1983-10-01 0
1984-01-01 0
1984-04-01 0
1984-07-01 25
1984-10-01 25
1985-01-01 25
1985-04-01 25
1985-07-01 0
1985-10-01 0
1986-01-01 0
1986-04-01 0
1986-07-01 0
1986-10-01 0
1987-01-01 0
1987-04-01 0
1987-07-01 0
1987-10-01 0
1988-01-01 0
1988-04-01 0
1988-07-01 0
1988-10-01 0
1989-01-01 0
1989-04-01 0
1989-07-01 38
1989-10-01 38
1990-01-01 38
1990-04-01 39
1990-07-01 0
1990-10-01 100
1991-01-01 301
1991-04-01 459
1991-07-01 647
1991-10-01 987
1992-01-01 978
1992-04-01 1122
1992-07-01 1166
1992-10-01 1016
1993-01-01 860
1993-04-01 574
1993-07-01 406
1993-10-01 100
1994-01-01 302
1994-04-01 516
1994-07-01 518
1994-10-01 1364
1995-01-01 2267
1995-04-01 2425
1995-07-01 2764
1995-10-01 2122
1996-01-01 1286
1996-04-01 1245
1996-07-01 1404
1996-10-01 1411
1997-01-01 1368
1997-04-01 2120
1997-07-01 2292
1997-10-01 2367
1998-01-01 2722
1998-04-01 2295
1998-07-01 1829
1998-10-01 2157
1999-01-01 1922
1999-04-01 1692
1999-07-01 2045
1999-10-01 1372
2000-01-01 1248
2000-04-01 1123
2000-07-01 2065
2000-10-01 2597
2001-01-01 2397
2001-04-01 3493
2001-07-01 2380
2001-10-01 3033
2002-01-01 3759
2002-04-01 3096
2002-07-01 2913
2002-10-01 2369
2003-01-01 2590
2003-04-01 3155
2003-07-01 3483
2003-10-01 4363
2004-01-01 3720
2004-04-01 3248
2004-07-01 3321
2004-10-01 3414
2005-01-01 3317
2005-04-01 3952
2005-07-01 3802
2005-10-01 3422
2006-01-01 3654
2006-04-01 3825
2006-07-01 3460
2006-10-01 3386
2007-01-01 3927
2007-04-01 2860
2007-07-01 3065
2007-10-01 4162
2008-01-01 3466
2008-04-01 4947
2008-07-01 6317
2008-10-01 7252
2009-01-01 6598
2009-04-01 6777
2009-07-01 6864
2009-10-01 5982
2010-01-01 5421
2010-04-01 7305
2010-07-01 8014
2010-10-01 9638
2011-01-01 13594
2011-04-01 16494
2011-07-01 17165
2011-10-01 22194
2012-01-01 29771
2012-04-01 32391
2012-07-01 33905
2012-10-01 42176
2013-01-01 51946
2013-04-01 66495
2013-07-01 79672
2013-10-01 88168
2014-01-01 103640
2014-04-01 110603
2014-07-01 115018
2014-10-01 115051
2015-01-01 117825
2015-04-01 126139
2015-07-01 117146
2015-10-01 134290
2016-01-01 126275
2016-04-01 142154
2016-07-01 145744
2016-10-01 158271
2017-01-01 172080
2017-04-01 185659
2017-07-01 199116
2017-10-01 215751
2018-01-01 220920
2018-04-01 236971