Quarterly US dollars
1986-09-30 49
1986-12-31 52
1987-03-31 39
1987-06-30 54
1987-09-30 82
1987-12-31 112
1988-03-31 106
1988-06-30 112
1988-09-30 123
1988-12-31 98
1989-03-31 101
1989-06-30 84
1989-09-30 83
1989-12-31 118
1990-03-31 119
1990-06-30 138
1990-09-30 125
1990-12-31 132
1991-03-31 100
1991-06-30 111
1991-09-30 115
1991-12-31 110
1992-03-31 98
1992-06-30 114
1992-09-30 125
1992-12-31 210
1993-03-31 184
1993-06-30 224
1993-09-30 246
1993-12-31 300
1994-03-31 337
1994-06-30 279
1994-09-30 237
1994-12-31 289
1995-03-31 356
1995-06-30 383
1995-09-30 366
1995-12-31 547
1996-03-31 490
1996-06-30 551
1996-09-30 582
1996-12-31 666
1997-03-31 579
1997-06-30 657
1997-09-30 611
1997-12-31 658
1998-03-31 645
1998-06-30 671
1998-09-30 713
1998-12-31 748
1999-03-31 660
1999-06-30 573
1999-09-30 561
1999-12-31 536
2000-03-31 574
2000-06-30 624
2000-09-30 740
2000-12-31 716
2001-03-31 881
2001-06-30 664
2001-09-30 657
2001-12-31 744
2002-03-31 670
2002-06-30 787
2002-09-30 772
2002-12-31 990
2003-03-31 1080
2003-06-30 1146
2003-09-30 1345
2003-12-31 1384
2004-03-31 1503
2004-06-30 1658
2004-09-30 1509
2004-12-31 1501
2005-03-31 1537
2005-06-30 1620
2005-09-30 1534
2005-12-31 1322
2006-03-31 1795
2006-06-30 2538
2006-09-30 1913
2006-12-31 2515
2007-03-31 2116
2007-06-30 1928
2007-09-30 2679
2007-12-31 2418
2008-03-31 2238
2008-06-30 2546
2008-09-30 2003
2008-12-31 3072
2009-03-31 2461
2009-06-30 2200
2009-09-30 2513
2009-12-31 2354
2010-03-31 2194
2010-06-30 2322
2010-09-30 2293
2010-12-31 2186
2011-03-31 2862
2011-06-30 4531
2011-09-30 5202
2011-12-31 4530
2012-03-31 3616
2012-06-30 4041
2012-09-30 4716
2012-12-31 3670
2013-03-31 4146
2013-06-30 5956
2013-09-30 4487
2013-12-31 4295
2014-03-31 4507
2014-06-30 4648
2014-09-30 3234
2014-12-31 4452
2015-03-31 3038
2015-06-30 2675
2015-09-30 2394
2015-12-31 2644
2016-03-31 2958
2016-06-30 2303
2016-09-30 2137
2016-12-31 1853
2017-03-31 1636
2017-06-30 2509
2017-09-30 2439
2017-12-31 2577
2018-03-31 3021
2018-06-30 3074
2018-09-30 2718
2018-12-31 1934
2019-03-31 1875
2019-06-30 1767
2019-09-30 1643
2019-12-31 1381
2020-03-31 1342
2020-06-30 1484
2020-09-30 1696
2020-12-31 1419
2021-03-31 1421
2021-06-30 1101
2021-09-30 903
2021-12-31 1088
2022-03-31 1133
2022-06-30 1104
2022-09-30 1259
2022-12-31 1340
2023-03-31 1591
2023-06-30 1736
2023-09-30 1604