Quarterly US dollars
1986-09-30 40
1986-12-31 61
1987-03-31 52
1987-06-30 57
1987-09-30 52
1987-12-31 79
1988-03-31 61
1988-06-30 56
1988-09-30 119
1988-12-31 112
1989-03-31 129
1989-06-30 112
1989-09-30 86
1989-12-31 120
1990-03-31 123
1990-06-30 156
1990-09-30 127
1990-12-31 179
1991-03-31 82
1991-06-30 115
1991-09-30 102
1991-12-31 124
1992-03-31 151
1992-06-30 192
1992-09-30 159
1992-12-31 108
1993-03-31 77
1993-06-30 129
1993-09-30 95
1993-12-31 98
1994-03-31 86
1994-06-30 92
1994-09-30 97
1994-12-31 78
1995-03-31 90
1995-06-30 102
1995-09-30 96
1995-12-31 102
1996-03-31 74
1996-06-30 81
1996-09-30 83
1996-12-31 125
1997-03-31 92
1997-06-30 143
1997-09-30 133
1997-12-31 102
1998-03-31 72
1998-06-30 120
1998-09-30 76
1998-12-31 164
1999-03-31 211
1999-06-30 219
1999-09-30 306
1999-12-31 163
2000-03-31 172
2000-06-30 119
2000-09-30 116
2000-12-31 109
2001-03-31 70
2001-06-30 42
2001-09-30 52
2001-12-31 73
2002-03-31 59
2002-06-30 37
2002-09-30 50
2002-12-31 59
2003-03-31 47
2003-06-30 119
2003-09-30 88
2003-12-31 241
2004-03-31 244
2004-06-30 192
2004-09-30 167
2004-12-31 329
2005-03-31 226
2005-06-30 979
2005-09-30 282
2005-12-31 633
2006-03-31 679
2006-06-30 1235
2006-09-30 1606
2006-12-31 2494
2007-03-31 2401
2007-06-30 2018
2007-09-30 1951
2007-12-31 2817
2008-03-31 4492
2008-06-30 12349
2008-09-30 10160
2008-12-31 5352
2009-03-31 5135
2009-06-30 5202
2009-09-30 1679
2009-12-31 3022
2010-03-31 2739
2010-06-30 2769
2010-09-30 3338
2010-12-31 2784
2011-03-31 1307
2011-06-30 1398
2011-09-30 1537
2011-12-31 1470
2012-03-31 2295
2012-06-30 1280
2012-09-30 3640
2012-12-31 3702
2013-03-31 4950
2013-06-30 4940
2013-09-30 5295
2013-12-31 5520
2014-03-31 4564
2014-06-30 4544
2014-09-30 4835
2014-12-31 4383
2015-03-31 3904
2015-06-30 4189
2015-09-30 5050
2015-12-31 5970
2016-03-31 5048
2016-06-30 4822
2016-09-30 4718
2016-12-31 4648
2017-03-31 4733
2017-06-30 4895
2017-09-30 925
2017-12-31 787
2018-03-31 907
2018-06-30 718
2018-09-30 586
2018-12-31 507
2019-03-31 443
2019-06-30 452
2019-09-30 411
2019-12-31 400
2020-03-31 319
2020-06-30 326
2020-09-30 374
2020-12-31 388
2021-03-31 381
2021-06-30 393
2021-09-30 339
2021-12-31 353
2022-03-31 336
2022-06-30 313
2022-09-30 293
2022-12-31 288
2023-03-31 290
2023-06-30 283
2023-09-30 271