Quarterly US dollars
1986-09-30 25717
1986-12-31 26929
1987-03-31 31036
1987-06-30 32133
1987-09-30 33151
1987-12-31 40641
1988-03-31 40492
1988-06-30 38517
1988-09-30 38350
1988-12-31 44311
1989-03-31 42250
1989-06-30 41314
1989-09-30 45584
1989-12-31 45929
1990-03-31 50004
1990-06-30 59458
1990-09-30 65367
1990-12-31 68303
1991-03-31 62322
1991-06-30 58176
1991-09-30 63908
1991-12-31 67126
1992-03-31 64779
1992-06-30 72401
1992-09-30 68350
1992-12-31 58254
1993-03-31 57965
1993-06-30 57070
1993-09-30 57234
1993-12-31 54692
1994-03-31 54107
1994-06-30 53629
1994-09-30 54672
1994-12-31 54187
1995-03-31 50632
1995-06-30 49297
1995-09-30 49736
1995-12-31 53807
1996-03-31 56616
1996-06-30 58194
1996-09-30 59873
1996-12-31 65337
1997-03-31 63681
1997-06-30 71613
1997-09-30 67479
1997-12-31 75506
1998-03-31 69578
1998-06-30 73223
1998-09-30 78317
1998-12-31 71521
1999-03-31 73826
1999-06-30 76293
1999-09-30 78266
1999-12-31 75398
2000-03-31 82701
2000-06-30 78376
2000-09-30 82111
2000-12-31 81538
2001-03-31 79669
2001-06-30 77306
2001-09-30 82668
2001-12-31 83158
2002-03-31 81583
2002-06-30 88362
2002-09-30 92906
2002-12-31 103185
2003-03-31 96543
2003-06-30 102488
2003-09-30 110947
2003-12-31 117563
2004-03-31 134248
2004-06-30 135216
2004-09-30 130514
2004-12-31 150731
2005-03-31 153436
2005-06-30 146788
2005-09-30 156722
2005-12-31 165685
2006-03-31 178821
2006-06-30 207330
2006-09-30 196905
2006-12-31 217147
2007-03-31 234132
2007-06-30 255865
2007-09-30 300342
2007-12-31 299634
2008-03-31 301536
2008-06-30 325801
2008-09-30 312400
2008-12-31 235845
2009-03-31 233419
2009-06-30 259118
2009-09-30 233808
2009-12-31 245321
2010-03-31 248453
2010-06-30 241737
2010-09-30 254006
2010-12-31 253899
2011-03-31 255494
2011-06-30 256034
2011-09-30 260016
2011-12-31 249276
2012-03-31 276848
2012-06-30 263870
2012-09-30 282110
2012-12-31 281033
2013-03-31 260819
2013-06-30 253667
2013-09-30 246453
2013-12-31 270737
2014-03-31 233130
2014-06-30 244390
2014-09-30 237599
2014-12-31 232307
2015-03-31 216690
2015-06-30 222701
2015-09-30 202915
2015-12-31 196318