Quarterly US dollars
1986-09-30 787
1986-12-31 268
1987-03-31 440
1987-06-30 459
1987-09-30 682
1987-12-31 603
1988-03-31 530
1988-06-30 545
1988-09-30 521
1988-12-31 480
1989-03-31 508
1989-06-30 691
1989-09-30 605
1989-12-31 673
1990-03-31 606
1990-06-30 492
1990-09-30 575
1990-12-31 985
1991-03-31 1105
1991-06-30 1022
1991-09-30 1170
1991-12-31 1058
1992-03-31 1265
1992-06-30 1504
1992-09-30 2012
1992-12-31 1417
1993-03-31 1527
1993-06-30 1390
1993-09-30 1752
1993-12-31 1605
1994-03-31 1632
1994-06-30 1452
1994-09-30 1666
1994-12-31 1806
1995-03-31 1752
1995-06-30 2401
1995-09-30 2188
1995-12-31 2032
1996-03-31 2136
1996-06-30 2080
1996-09-30 2334
1996-12-31 3099
1997-03-31 2678
1997-06-30 2238
1997-09-30 1557
1997-12-31 1925
1998-03-31 1220
1998-06-30 1129
1998-09-30 1273
1998-12-31 1299
1999-03-31 1229
1999-06-30 1602
1999-09-30 1381
1999-12-31 1695
2000-03-31 1639
2000-06-30 2216
2000-09-30 2050
2000-12-31 2094
2001-03-31 2892
2001-06-30 3371
2001-09-30 3051
2001-12-31 2770
2002-03-31 2854
2002-06-30 2741
2002-09-30 2880
2002-12-31 2630
2003-03-31 2531
2003-06-30 2976
2003-09-30 3072
2003-12-31 2970
2004-03-31 2777
2004-06-30 2466
2004-09-30 2675
2004-12-31 2235
2005-03-31 2625
2005-06-30 2633
2005-09-30 2993
2005-12-31 2792
2006-03-31 3165
2006-06-30 2568
2006-09-30 2438
2006-12-31 2627
2007-03-31 2448
2007-06-30 2277
2007-09-30 1916
2007-12-31 1915
2008-03-31 1857
2008-06-30 1383
2008-09-30 751
2008-12-31 1525
2009-03-31 1186
2009-06-30 1538
2009-09-30 1544
2009-12-31 1586
2010-03-31 2393
2010-06-30 1873
2010-09-30 1289
2010-12-31 1630
2011-03-31 1173
2011-06-30 801
2011-09-30 690
2011-12-31 708
2012-03-31 940
2012-06-30 1017
2012-09-30 1006
2012-12-31 1030
2013-03-31 1214
2013-06-30 421
2013-09-30 632
2013-12-31 790
2014-03-31 849
2014-06-30 1000
2014-09-30 1217
2014-12-31 483
2015-03-31 531
2015-06-30 577
2015-09-30 642
2015-12-31 719
2016-03-31 563
2016-06-30 1238
2016-09-30 1201
2016-12-31 1383
2017-03-31 1049
2017-06-30 1115
2017-09-30 973
2017-12-31 1394
2018-03-31 1401
2018-06-30 1216
2018-09-30 1292
2018-12-31 706
2019-03-31 756
2019-06-30 1198
2019-09-30 648
2019-12-31 1521
2020-03-31 2056
2020-06-30 1765
2020-09-30 1909
2020-12-31 1722
2021-03-31 3080
2021-06-30 2447
2021-09-30 2816
2021-12-31 1883
2022-03-31 3152
2022-06-30 2981
2022-09-30 3430
2022-12-31 3304
2023-03-31 2361
2023-06-30 3621
2023-09-30 3435