Quarterly US dollars
1986-09-30 70
1986-12-31 78
1987-03-31 109
1987-06-30 137
1987-09-30 195
1987-12-31 187
1988-03-31 175
1988-06-30 217
1988-09-30 288
1988-12-31 284
1989-03-31 303
1989-06-30 280
1989-09-30 417
1989-12-31 405
1990-03-31 410
1990-06-30 453
1990-09-30 546
1990-12-31 504
1991-03-31 566
1991-06-30 470
1991-09-30 571
1991-12-31 566
1992-03-31 1427
1992-06-30 1562
1992-09-30 1472
1992-12-31 1270
1993-03-31 1241
1993-06-30 1202
1993-09-30 1229
1993-12-31 1491
1994-03-31 1498
1994-06-30 1550
1994-09-30 1538
1994-12-31 1560
1995-03-31 430
1995-06-30 385
1995-09-30 367
1995-12-31 248
1996-03-31 333
1996-06-30 580
1996-09-30 534
1996-12-31 471
1997-03-31 481
1997-06-30 592
1997-09-30 477
1997-12-31 534
1998-03-31 489
1998-06-30 402
1998-09-30 406
1998-12-31 368
1999-03-31 592
1999-06-30 589
1999-09-30 608
1999-12-31 639
2000-03-31 622
2000-06-30 1418
2000-09-30 1488
2000-12-31 1166
2001-03-31 1357
2001-06-30 1878
2001-09-30 1843
2001-12-31 1566
2002-03-31 2191
2002-06-30 1901
2002-09-30 1801
2002-12-31 1416
2003-03-31 1885
2003-06-30 1116
2003-09-30 2037
2003-12-31 1612
2004-03-31 2062
2004-06-30 2216
2004-09-30 2220
2004-12-31 2246
2005-03-31 2443
2005-06-30 2643
2005-09-30 2113
2005-12-31 2676
2006-03-31 3260
2006-06-30 3169
2006-09-30 3075
2006-12-31 2992
2007-03-31 3142
2007-06-30 3057
2007-09-30 3741
2007-12-31 3518
2008-03-31 805
2008-06-30 4208
2008-09-30 4169
2008-12-31 3628
2009-03-31 5746
2009-06-30 4224
2009-09-30 2820
2009-12-31 2713
2010-03-31 3748
2010-06-30 2890
2010-09-30 3198
2010-12-31 4448
2011-03-31 4692
2011-06-30 4450
2011-09-30 2531
2011-12-31 2381
2012-03-31 2659
2012-06-30 2643
2012-09-30 3289
2012-12-31 2176
2013-03-31 3182
2013-06-30 1720
2013-09-30 3372
2013-12-31 2311
2014-03-31 3432
2014-06-30 1643
2014-09-30 2437
2014-12-31 2376
2015-03-31 2304
2015-06-30 1502
2015-09-30 1353
2015-12-31 965
2016-03-31 1035
2016-06-30 867
2016-09-30 1199
2016-12-31 1199
2017-03-31 1126
2017-06-30 1138
2017-09-30 1054
2017-12-31 1123
2018-03-31 913
2018-06-30 847
2018-09-30 839
2018-12-31 809
2019-03-31 785
2019-06-30 781
2019-09-30 729
2019-12-31 646
2020-03-31 625
2020-06-30 525
2020-09-30 533
2020-12-31 542
2021-03-31 560
2021-06-30 736
2021-09-30 682
2021-12-31 657
2022-03-31 653
2022-06-30 709
2022-09-30 861
2022-12-31 751
2023-03-31 746
2023-06-30 744
2023-09-30 733