Quarterly US dollars
1986-09-30 620
1986-12-31 670
1987-03-31 744
1987-06-30 707
1987-09-30 629
1987-12-31 666
1988-03-31 643
1988-06-30 565
1988-09-30 547
1988-12-31 583
1989-03-31 522
1989-06-30 497
1989-09-30 610
1989-12-31 540
1990-03-31 545
1990-06-30 568
1990-09-30 629
1990-12-31 726
1991-03-31 649
1991-06-30 702
1991-09-30 706
1991-12-31 803
1992-03-31 804
1992-06-30 773
1992-09-30 759
1992-12-31 787
1993-03-31 813
1993-06-30 687
1993-09-30 652
1993-12-31 729
1994-03-31 683
1994-06-30 712
1994-09-30 797
1994-12-31 714
1995-03-31 823
1995-06-30 1032
1995-09-30 1006
1995-12-31 1140
1996-03-31 1012
1996-06-30 1055
1996-09-30 1098
1996-12-31 1272
1997-03-31 1195
1997-06-30 1039
1997-09-30 943
1997-12-31 930
1998-03-31 979
1998-06-30 958
1998-09-30 895
1998-12-31 837
1999-03-31 763
1999-06-30 775
1999-09-30 871
1999-12-31 754
2000-03-31 605
2000-06-30 524
2000-09-30 475
2000-12-31 477
2001-03-31 455
2001-06-30 404
2001-09-30 406
2001-12-31 386
2002-03-31 360
2002-06-30 347
2002-09-30 344
2002-12-31 339
2003-03-31 441
2003-06-30 405
2003-09-30 384
2003-12-31 407
2004-03-31 468
2004-06-30 362
2004-09-30 314
2004-12-31 320
2005-03-31 361
2005-06-30 350
2005-09-30 579
2005-12-31 442
2006-03-31 823
2006-06-30 748
2006-09-30 700
2006-12-31 717
2007-03-31 667
2007-06-30 850
2007-09-30 647
2007-12-31 641
2008-03-31 584
2008-06-30 713
2008-09-30 685
2008-12-31 640
2009-03-31 683
2009-06-30 694
2009-09-30 714
2009-12-31 922
2010-03-31 690
2010-06-30 621
2010-09-30 646
2010-12-31 674
2011-03-31 712
2011-06-30 836
2011-09-30 808
2011-12-31 659
2012-03-31 555
2012-06-30 566
2012-09-30 587
2012-12-31 492
2013-03-31 559
2013-06-30 488
2013-09-30 545
2013-12-31 618
2014-03-31 709
2014-06-30 793
2014-09-30 665
2014-12-31 566
2015-03-31 589
2015-06-30 400
2015-09-30 812
2015-12-31 771
2016-03-31 800
2016-06-30 1352
2016-09-30 1409
2016-12-31 1392
2017-03-31 1505
2017-06-30 1664
2017-09-30 1998
2017-12-31 1762
2018-03-31 1105
2018-06-30 857
2018-09-30 786
2018-12-31 1061
2019-03-31 878
2019-06-30 745
2019-09-30 712
2019-12-31 1042
2020-03-31 1023
2020-06-30 1031
2020-09-30 876
2020-12-31 682
2021-03-31 740
2021-06-30 767
2021-09-30 672
2021-12-31 564
2022-03-31 482
2022-06-30 485
2022-09-30 439
2022-12-31 404
2023-03-31 375
2023-06-30 356
2023-09-30 349