Quarterly US dollars
1986-09-30 328
1986-12-31 372
1987-03-31 349
1987-06-30 386
1987-09-30 518
1987-12-31 678
1988-03-31 660
1988-06-30 759
1988-09-30 679
1988-12-31 816
1989-03-31 749
1989-06-30 529
1989-09-30 872
1989-12-31 861
1990-03-31 593
1990-06-30 777
1990-09-30 869
1990-12-31 878
1991-03-31 719
1991-06-30 549
1991-09-30 671
1991-12-31 745
1992-03-31 592
1992-06-30 652
1992-09-30 532
1992-12-31 460
1993-03-31 579
1993-06-30 722
1993-09-30 778
1993-12-31 725
1994-03-31 739
1994-06-30 581
1994-09-30 904
1994-12-31 606
1995-03-31 1098
1995-06-30 1022
1995-09-30 983
1995-12-31 1089
1996-03-31 1256
1996-06-30 1247
1996-09-30 1150
1996-12-31 1216
1997-03-31 1421
1997-06-30 509
1997-09-30 741
1997-12-31 409
1998-03-31 312
1998-06-30 290
1998-09-30 348
1998-12-31 246
1999-03-31 445
1999-06-30 431
1999-09-30 432
1999-12-31 282
2000-03-31 708
2000-06-30 947
2000-09-30 875
2000-12-31 856
2001-03-31 617
2001-06-30 643
2001-09-30 400
2001-12-31 437
2002-03-31 408
2002-06-30 373
2002-09-30 346
2002-12-31 411
2003-03-31 380
2003-06-30 476
2003-09-30 420
2003-12-31 394
2004-03-31 490
2004-06-30 418
2004-09-30 408
2004-12-31 554
2005-03-31 650
2005-06-30 539
2005-09-30 673
2005-12-31 866
2006-03-31 826
2006-06-30 871
2006-09-30 901
2006-12-31 1040
2007-03-31 1228
2007-06-30 1260
2007-09-30 977
2007-12-31 668
2008-03-31 922
2008-06-30 563
2008-09-30 763
2008-12-31 759
2009-03-31 386
2009-06-30 603
2009-09-30 580
2009-12-31 766
2010-03-31 684
2010-06-30 525
2010-09-30 481
2010-12-31 846
2011-03-31 642
2011-06-30 814
2011-09-30 717
2011-12-31 562
2012-03-31 501
2012-06-30 480
2012-09-30 635
2012-12-31 518
2013-03-31 404
2013-06-30 405
2013-09-30 387
2013-12-31 307
2014-03-31 350
2014-06-30 464
2014-09-30 419
2014-12-31 605
2015-03-31 765
2015-06-30 859
2015-09-30 742
2015-12-31 483
2016-03-31 475
2016-06-30 471
2016-09-30 674
2016-12-31 658
2017-03-31 524
2017-06-30 587
2017-09-30 513
2017-12-31 534
2018-03-31 703
2018-06-30 432
2018-09-30 523
2018-12-31 1320
2019-03-31 717
2019-06-30 527
2019-09-30 424
2019-12-31 463
2020-03-31 348
2020-06-30 288
2020-09-30 616
2020-12-31 475
2021-03-31 341
2021-06-30 370
2021-09-30 336
2021-12-31 257
2022-03-31 416
2022-06-30 347
2022-09-30 402
2022-12-31 392
2023-03-31 367
2023-06-30 629
2023-09-30 630