Quarterly US dollars
1986-09-30 426
1986-12-31 541
1987-03-31 484
1987-06-30 615
1987-09-30 469
1987-12-31 807
1988-03-31 834
1988-06-30 718
1988-09-30 587
1988-12-31 539
1989-03-31 523
1989-06-30 497
1989-09-30 626
1989-12-31 610
1990-03-31 436
1990-06-30 484
1990-09-30 729
1990-12-31 504
1991-03-31 525
1991-06-30 685
1991-09-30 525
1991-12-31 600
1992-03-31 406
1992-06-30 599
1992-09-30 588
1992-12-31 691
1993-03-31 736
1993-06-30 704
1993-09-30 560
1993-12-31 687
1994-03-31 484
1994-06-30 483
1994-09-30 805
1994-12-31 758
1995-03-31 445
1995-06-30 408
1995-09-30 525
1995-12-31 644
1996-03-31 511
1996-06-30 586
1996-09-30 484
1996-12-31 742
1997-03-31 541
1997-06-30 607
1997-09-30 1993
1997-12-31 1661
1998-03-31 1157
1998-06-30 945
1998-09-30 1438
1998-12-31 1769
1999-03-31 2369
1999-06-30 2262
1999-09-30 2233
1999-12-31 2051
2000-03-31 2697
2000-06-30 1734
2000-09-30 2404
2000-12-31 1609
2001-03-31 1363
2001-06-30 1515
2001-09-30 1497
2001-12-31 1254
2002-03-31 1549
2002-06-30 1591
2002-09-30 1437
2002-12-31 1210
2003-03-31 1210
2003-06-30 1526
2003-09-30 1161
2003-12-31 705
2004-03-31 1041
2004-06-30 753
2004-09-30 1497
2004-12-31 1241
2005-03-31 1267
2005-06-30 1254
2005-09-30 1427
2005-12-31 2044
2006-03-31 2487
2006-06-30 3624
2006-09-30 2391
2006-12-31 2883
2007-03-31 3415
2007-06-30 2892
2007-09-30 2750
2007-12-31 4558
2008-03-31 3077
2008-06-30 2308
2008-09-30 1326
2008-12-31 1079
2009-03-31 1084
2009-06-30 1385
2009-09-30 1547
2009-12-31 1578
2010-03-31 1181
2010-06-30 2120
2010-09-30 1266
2010-12-31 1651
2011-03-31 1411
2011-06-30 1460
2011-09-30 1886
2011-12-31 788
2012-03-31 686
2012-06-30 517
2012-09-30 402
2012-12-31 735
2013-03-31 1266
2013-06-30 1143
2013-09-30 1354
2013-12-31 1409
2014-03-31 598
2014-06-30 1844
2014-09-30 2547
2014-12-31 2204
2015-03-31 2984
2015-06-30 2583
2015-09-30 1815
2015-12-31 1575
2016-03-31 2656
2016-06-30 2530
2016-09-30 2343
2016-12-31 2151
2017-03-31 1815
2017-06-30 1574
2017-09-30 1695
2017-12-31 2145
2018-03-31 2034
2018-06-30 2079
2018-09-30 1682
2018-12-31 2579
2019-03-31 1855
2019-06-30 1546
2019-09-30 1891
2019-12-31 1158
2020-03-31 1545
2020-06-30 1716
2020-09-30 1642
2020-12-31 2344
2021-03-31 2715
2021-06-30 2730
2021-09-30 2467
2021-12-31 2209
2022-03-31 1795
2022-06-30 1594
2022-09-30 1926
2022-12-31 2129
2023-03-31 2312
2023-06-30 1814
2023-09-30 2822