Quarterly Millions of US Dollars
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 0
1978-07-01 0
1978-10-01 25
1979-01-01 25
1979-04-01 40
1979-07-01 51
1979-10-01 51
1980-01-01 88
1980-04-01 78
1980-07-01 66
1980-10-01 38
1981-01-01 72
1981-04-01 100
1981-07-01 103
1981-10-01 107
1982-01-01 37
1982-04-01 0
1982-07-01 0
1982-10-01 100
1983-01-01 100
1983-04-01 148
1983-07-01 147
1983-10-01 70
1984-01-01 70
1984-04-01 159
1984-07-01 213
1984-10-01 631
1985-01-01 732
1985-04-01 660
1985-07-01 657
1985-10-01 298
1986-01-01 321
1986-04-01 385
1986-07-01 514
1986-10-01 525
1987-01-01 476
1987-04-01 438
1987-07-01 302
1987-10-01 349
1988-01-01 473
1988-04-01 512
1988-07-01 537
1988-10-01 471
1989-01-01 334
1989-04-01 375
1989-07-01 432
1989-10-01 470
1990-01-01 513
1990-04-01 495
1990-07-01 396
1990-10-01 430
1991-01-01 327
1991-04-01 155
1991-07-01 169
1991-10-01 216
1992-01-01 152
1992-04-01 200
1992-07-01 289
1992-10-01 96
1993-01-01 95
1993-04-01 359
1993-07-01 452
1993-10-01 635
1994-01-01 694
1994-04-01 441
1994-07-01 495
1994-10-01 318
1995-01-01 323
1995-04-01 245
1995-07-01 245
1995-10-01 581
1996-01-01 893
1996-04-01 881
1996-07-01 640
1996-10-01 573
1997-01-01 259
1997-04-01 310
1997-07-01 310
1997-10-01 232
1998-01-01 342
1998-04-01 309
1998-07-01 317
1998-10-01 888
1999-01-01 829
1999-04-01 1287
1999-07-01 1299
1999-10-01 461
2000-01-01 481
2000-04-01 161
2000-07-01 155
2000-10-01 349
2001-01-01 610
2001-04-01 543
2001-07-01 654
2001-10-01 1048
2002-01-01 821
2002-04-01 849
2002-07-01 622
2002-10-01 1482
2003-01-01 1497
2003-04-01 2005
2003-07-01 2045
2003-10-01 975
2004-01-01 968
2004-04-01 412
2004-07-01 419
2004-10-01 222
2005-01-01 410
2005-04-01 1710
2005-07-01 2203
2005-10-01 3721
2006-01-01 3849
2006-04-01 2622
2006-07-01 2800
2006-10-01 1543
2007-01-01 1278
2007-04-01 1839
2007-07-01 1793
2007-10-01 1342
2008-01-01 2073
2008-04-01 3778
2008-07-01 3089
2008-10-01 3115
2009-01-01 3258
2009-04-01 1609
2009-07-01 1613
2009-10-01 1572
2010-01-01 877
2010-04-01 26
2010-07-01 1026
2010-10-01 1056
2011-01-01 1180
2011-04-01 2380
2011-07-01 3792
2011-10-01 4751
2012-01-01 3630
2012-04-01 6520
2012-07-01 4170
2012-10-01 4203
2013-01-01 4655
2013-04-01 6534
2013-07-01 6534
2013-10-01 9434
2014-01-01 12434
2014-04-01 6984
2014-07-01 8234
2014-10-01 7494
2015-01-01 3890
2015-04-01 4212
2015-07-01 3969
2015-10-01 2855
2016-01-01 4896
2016-04-01 4738
2016-07-01 3741
2016-10-01 5820
2017-01-01 5828
2017-04-01 5153
2017-07-01 5632
2017-10-01 2522
2018-01-01 2000
2018-04-01 9696