Quarterly Millions of US Dollars
1978-01-01 25
1978-04-01 73
1978-07-01 79
1978-10-01 79
1979-01-01 104
1979-04-01 183
1979-07-01 248
1979-10-01 242
1980-01-01 236
1980-04-01 296
1980-07-01 300
1980-10-01 304
1981-01-01 297
1981-04-01 284
1981-07-01 324
1981-10-01 334
1982-01-01 353
1982-04-01 346
1982-07-01 336
1982-10-01 364
1983-01-01 356
1983-04-01 355
1983-07-01 462
1983-10-01 466
1984-01-01 580
1984-04-01 482
1984-07-01 512
1984-10-01 503
1985-01-01 903
1985-04-01 946
1985-07-01 1029
1985-10-01 1362
1986-01-01 1422
1986-04-01 1416
1986-07-01 1393
1986-10-01 1376
1987-01-01 1426
1987-04-01 1422
1987-07-01 1425
1987-10-01 1542
1988-01-01 1526
1988-04-01 1402
1988-07-01 1628
1988-10-01 1708
1989-01-01 1687
1989-04-01 1674
1989-07-01 1772
1989-10-01 1770
1990-01-01 1671
1990-04-01 1432
1990-07-01 1504
1990-10-01 1449
1991-01-01 1261
1991-04-01 1249
1991-07-01 1111
1991-10-01 1137
1992-01-01 1348
1992-04-01 1336
1992-07-01 1474
1992-10-01 1449
1993-01-01 1981
1993-04-01 2158
1993-07-01 3447
1993-10-01 4623
1994-01-01 6258
1994-04-01 6457
1994-07-01 7010
1994-10-01 7282
1995-01-01 7681
1995-04-01 7958
1995-07-01 8344
1995-10-01 8743
1996-01-01 10005
1996-04-01 10860
1996-07-01 12624
1996-10-01 13568
1997-01-01 14117
1997-04-01 15411
1997-07-01 15425
1997-10-01 15049
1998-01-01 14759
1998-04-01 14721
1998-07-01 14745
1998-10-01 15146
1999-01-01 14559
1999-04-01 14470
1999-07-01 13992
1999-10-01 13984
2000-01-01 13645
2000-04-01 13824
2000-07-01 13156
2000-10-01 12963
2001-01-01 12083
2001-04-01 12050
2001-07-01 10958
2001-10-01 10267
2002-01-01 9773
2002-04-01 9630
2002-07-01 10529
2002-10-01 10211
2003-01-01 10189
2003-04-01 10034
2003-07-01 9624
2003-10-01 9217
2004-01-01 7868
2004-04-01 8509
2004-07-01 8941
2004-10-01 9306
2005-01-01 9464
2005-04-01 10818
2005-07-01 10302
2005-10-01 10482
2006-01-01 10274
2006-04-01 10962
2006-07-01 11434
2006-10-01 11264
2007-01-01 10704
2007-04-01 9635
2007-07-01 9659
2007-10-01 9442
2008-01-01 9505
2008-04-01 9296
2008-07-01 9258
2008-10-01 8984
2009-01-01 8698
2009-04-01 8318
2009-07-01 8145
2009-10-01 7833
2010-01-01 7602
2010-04-01 7316
2010-07-01 8149
2010-10-01 9267
2011-01-01 9571
2011-04-01 10227
2011-07-01 9836
2011-10-01 10194
2012-01-01 11637
2012-04-01 12109
2012-07-01 14420
2012-10-01 16476
2013-01-01 17487
2013-04-01 17263
2013-07-01 17790
2013-10-01 18418
2014-01-01 18739
2014-04-01 21512
2014-07-01 21128
2014-10-01 20939
2015-01-01 20990
2015-04-01 20340
2015-07-01 19808
2015-10-01 19355
2016-01-01 19336
2016-04-01 19990
2016-07-01 20833
2016-10-01 20159
2017-01-01 20895
2017-04-01 20643
2017-07-01 22700
2017-10-01 20941
2018-01-01 21163
2018-04-01 22348