Quarterly Millions of US Dollars
1972-01-01 20
1972-04-01 40
1972-07-01 40
1972-10-01 40
1973-01-01 40
1973-04-01 40
1973-07-01 40
1973-10-01 40
1974-01-01 40
1974-04-01 40
1974-07-01 49
1974-10-01 49
1975-01-01 49
1975-04-01 49
1975-07-01 49
1975-10-01 49
1976-01-01 49
1976-04-01 49
1976-07-01 49
1976-10-01 63
1977-01-01 63
1977-04-01 65
1977-07-01 90
1977-10-01 90
1978-01-01 184
1978-04-01 188
1978-07-01 262
1978-10-01 303
1979-01-01 375
1979-04-01 372
1979-07-01 369
1979-10-01 363
1980-01-01 358
1980-04-01 353
1980-07-01 381
1980-10-01 385
1981-01-01 380
1981-04-01 372
1981-07-01 369
1981-10-01 374
1982-01-01 348
1982-04-01 345
1982-07-01 316
1982-10-01 328
1983-01-01 317
1983-04-01 316
1983-07-01 318
1983-10-01 320
1984-01-01 304
1984-04-01 297
1984-07-01 293
1984-10-01 290
1985-01-01 290
1985-04-01 291
1985-07-01 308
1985-10-01 263
1986-01-01 259
1986-04-01 273
1986-07-01 283
1986-10-01 264
1987-01-01 280
1987-04-01 278
1987-07-01 252
1987-10-01 291
1988-01-01 192
1988-04-01 182
1988-07-01 180
1988-10-01 190
1989-01-01 182
1989-04-01 172
1989-07-01 175
1989-10-01 172
1990-01-01 161
1990-04-01 165
1990-07-01 152
1990-10-01 136
1991-01-01 132
1991-04-01 134
1991-07-01 139
1991-10-01 147
1992-01-01 139
1992-04-01 146
1992-07-01 153
1992-10-01 147
1993-01-01 115
1993-04-01 125
1993-07-01 125
1993-10-01 118
1994-01-01 11
1994-04-01 11
1994-07-01 11
1994-10-01 11
1995-01-01 11
1995-04-01 11
1995-07-01 11
1995-10-01 11
1996-01-01 13
1996-04-01 18
1996-07-01 3242
1996-10-01 3240
1997-01-01 3734
1997-04-01 3742
1997-07-01 4557
1997-10-01 4550
1998-01-01 4549
1998-04-01 4849
1998-07-01 4849
1998-10-01 4235
1999-01-01 4735
1999-04-01 4735
1999-07-01 4735
1999-10-01 4735
2000-01-01 4735
2000-04-01 4709
2000-07-01 5059
2000-10-01 5059
2001-01-01 6074
2001-04-01 5918
2001-07-01 5895
2001-10-01 5531
2002-01-01 5181
2002-04-01 5219
2002-07-01 5312
2002-10-01 5359
2003-01-01 5540
2003-04-01 5554
2003-07-01 5514
2003-10-01 5543
2004-01-01 5709
2004-04-01 5683
2004-07-01 5682
2004-10-01 6318
2005-01-01 6298
2005-04-01 6272
2005-07-01 6671
2005-10-01 7774
2006-01-01 8783
2006-04-01 8173
2006-07-01 8127
2006-10-01 8127
2007-01-01 8127
2007-04-01 8577
2007-07-01 8577
2007-10-01 8897
2008-01-01 8897
2008-04-01 8567
2008-07-01 8567
2008-10-01 8567
2009-01-01 8890
2009-04-01 8890
2009-07-01 8890
2009-10-01 9890
2010-01-01 9890
2010-04-01 9890
2010-07-01 9890
2010-10-01 9740
2011-01-01 9819
2011-04-01 9833
2011-07-01 10572
2011-10-01 10568
2012-01-01 10388
2012-04-01 10404
2012-07-01 10137
2012-10-01 11584
2013-01-01 11542
2013-04-01 12272
2013-07-01 12378
2013-10-01 12678
2014-01-01 12684
2014-04-01 13063
2014-07-01 14255
2014-10-01 14393
2015-01-01 14302
2015-04-01 14460
2015-07-01 14450
2015-10-01 14893
2016-01-01 15930
2016-04-01 16883
2016-07-01 16890
2016-10-01 17370
2017-01-01 17542
2017-04-01 18979
2017-07-01 20018
2017-10-01 19519
2018-01-01 19551
2018-04-01 20771