Quarterly US dollars
1986-09-30 405
1986-12-31 387
1987-03-31 354
1987-06-30 336
1987-09-30 346
1987-12-31 355
1988-03-31 331
1988-06-30 346
1988-09-30 352
1988-12-31 358
1989-03-31 269
1989-06-30 285
1989-09-30 249
1989-12-31 233
1990-03-31 230
1990-06-30 279
1990-09-30 290
1990-12-31 310
1991-03-31 288
1991-06-30 285
1991-09-30 310
1991-12-31 313
1992-03-31 262
1992-06-30 250
1992-09-30 232
1992-12-31 206
1993-03-31 222
1993-06-30 191
1993-09-30 156
1993-12-31 152
1994-03-31 168
1994-06-30 182
1994-09-30 142
1994-12-31 149
1995-03-31 146
1995-06-30 169
1995-09-30 94
1995-12-31 92
1996-03-31 74
1996-06-30 62
1996-09-30 107
1996-12-31 137
1997-03-31 106
1997-06-30 115
1997-09-30 112
1997-12-31 76
1998-03-31 110
1998-06-30 152
1998-09-30 86
1998-12-31 74
1999-03-31 67
1999-06-30 71
1999-09-30 95
1999-12-31 81
2000-03-31 52
2000-06-30 24
2000-09-30 34
2000-12-31 57
2001-03-31 47
2001-06-30 93
2001-09-30 80
2001-12-31 84
2002-03-31 49
2002-06-30 55
2002-09-30 66
2002-12-31 77
2003-03-31 68
2003-06-30 74
2003-09-30 89
2003-12-31 107
2004-03-31 107
2004-06-30 92
2004-09-30 105
2004-12-31 122
2005-03-31 101
2005-06-30 91
2005-09-30 100
2005-12-31 155
2006-03-31 160
2006-06-30 150
2006-09-30 135
2006-12-31 133
2007-03-31 106
2007-06-30 184
2007-09-30 239
2007-12-31 291
2008-03-31 440
2008-06-30 617
2008-09-30 708
2008-12-31 679
2009-03-31 627
2009-06-30 673
2009-09-30 630
2009-12-31 645
2010-03-31 728
2010-06-30 627
2010-09-30 650
2010-12-31 655
2011-03-31 717
2011-06-30 704
2011-09-30 667
2011-12-31 637
2012-03-31 614
2012-06-30 680
2012-09-30 716
2012-12-31 718
2013-03-31 759
2013-06-30 599
2013-09-30 645
2013-12-31 647
2014-03-31 624
2014-06-30 932
2014-09-30 921
2014-12-31 889
2015-03-31 869
2015-06-30 953
2015-09-30 922
2015-12-31 871
2016-03-31 795
2016-06-30 831
2016-09-30 848
2016-12-31 1053
2017-03-31 1007
2017-06-30 1087
2017-09-30 1046
2017-12-31 1052
2018-03-31 1245
2018-06-30 1155
2018-09-30 1102
2018-12-31 1049
2019-03-31 934
2019-06-30 844
2019-09-30 759
2019-12-31 687
2020-03-31 575
2020-06-30 535
2020-09-30 540
2020-12-31 313
2021-03-31 293
2021-06-30 539
2021-09-30 819
2021-12-31 758
2022-03-31 687
2022-06-30 652
2022-09-30 581
2022-12-31 632
2023-03-31 842
2023-06-30 773
2023-09-30 836