Quarterly US dollars
1986-09-30 98
1986-12-31 124
1987-03-31 130
1987-06-30 130
1987-09-30 130
1987-12-31 158
1988-03-31 145
1988-06-30 133
1988-09-30 133
1988-12-31 143
1989-03-31 142
1989-06-30 163
1989-09-30 148
1989-12-31 161
1990-03-31 153
1990-06-30 156
1990-09-30 155
1990-12-31 159
1991-03-31 138
1991-06-30 167
1991-09-30 143
1991-12-31 167
1992-03-31 208
1992-06-30 285
1992-09-30 303
1992-12-31 258
1993-03-31 257
1993-06-30 245
1993-09-30 251
1993-12-31 230
1994-03-31 243
1994-06-30 248
1994-09-30 245
1994-12-31 268
1995-03-31 283
1995-06-30 239
1995-09-30 324
1995-12-31 326
1996-03-31 294
1996-06-30 303
1996-09-30 314
1996-12-31 337
1997-03-31 369
1997-06-30 314
1997-09-30 314
1997-12-31 400
1998-03-31 409
1998-06-30 451
1998-09-30 510
1998-12-31 515
1999-03-31 549
1999-06-30 526
1999-09-30 603
1999-12-31 567
2000-03-31 593
2000-06-30 576
2000-09-30 596
2000-12-31 654
2001-03-31 614
2001-06-30 582
2001-09-30 605
2001-12-31 586
2002-03-31 550
2002-06-30 606
2002-09-30 621
2002-12-31 568
2003-03-31 569
2003-06-30 597
2003-09-30 685
2003-12-31 676
2004-03-31 594
2004-06-30 634
2004-09-30 718
2004-12-31 593
2005-03-31 594
2005-06-30 638
2005-09-30 633
2005-12-31 516
2006-03-31 520
2006-06-30 556
2006-09-30 508
2006-12-31 580
2007-03-31 650
2007-06-30 593
2007-09-30 958
2007-12-31 1042
2008-03-31 1091
2008-06-30 1100
2008-09-30 950
2008-12-31 915
2009-03-31 653
2009-06-30 882
2009-09-30 1003
2009-12-31 866
2010-03-31 881
2010-06-30 1004
2010-09-30 1103
2010-12-31 990
2011-03-31 931
2011-06-30 919
2011-09-30 978
2011-12-31 921
2012-03-31 1095
2012-06-30 943
2012-09-30 1290
2012-12-31 1113
2013-03-31 1159
2013-06-30 977
2013-09-30 1156
2013-12-31 944
2014-03-31 1139
2014-06-30 1236
2014-09-30 1100
2014-12-31 1098
2015-03-31 1224
2015-06-30 1192
2015-09-30 1031
2015-12-31 952
2016-03-31 1208
2016-06-30 1234
2016-09-30 1158
2016-12-31 1011
2017-03-31 1309
2017-06-30 1359
2017-09-30 1589
2017-12-31 1787
2018-03-31 1883
2018-06-30 1568
2018-09-30 1130
2018-12-31 1172
2019-03-31 1355
2019-06-30 974
2019-09-30 1201
2019-12-31 1170
2020-03-31 1070
2020-06-30 1245
2020-09-30 1784
2020-12-31 1455
2021-03-31 1610
2021-06-30 1481
2021-09-30 1645
2021-12-31 1627
2022-03-31 1760
2022-06-30 1497
2022-09-30 1181
2022-12-31 1325
2023-03-31 1274
2023-06-30 1151
2023-09-30 954