Quarterly US dollars
1986-09-30 621
1986-12-31 630
1987-03-31 631
1987-06-30 643
1987-09-30 640
1987-12-31 631
1988-03-31 627
1988-06-30 604
1988-09-30 519
1988-12-31 548
1989-03-31 544
1989-06-30 542
1989-09-30 499
1989-12-31 466
1990-03-31 463
1990-06-30 440
1990-09-30 322
1990-12-31 323
1991-03-31 304
1991-06-30 291
1991-09-30 283
1991-12-31 282
1992-03-31 262
1992-06-30 251
1992-09-30 249
1992-12-31 179
1993-03-31 181
1993-06-30 189
1993-09-30 190
1993-12-31 253
1994-03-31 319
1994-06-30 190
1994-09-30 183
1994-12-31 176
1995-03-31 167
1995-06-30 199
1995-09-30 183
1995-12-31 284
1996-03-31 334
1996-06-30 323
1996-09-30 270
1996-12-31 448
1997-03-31 518
1997-06-30 326
1997-09-30 335
1997-12-31 312
1998-03-31 370
1998-06-30 472
1998-09-30 401
1998-12-31 375
1999-03-31 344
1999-06-30 426
1999-09-30 360
1999-12-31 345
2000-03-31 292
2000-06-30 337
2000-09-30 319
2000-12-31 229
2001-03-31 205
2001-06-30 167
2001-09-30 184
2001-12-31 176
2002-03-31 277
2002-06-30 271
2002-09-30 319
2002-12-31 346
2003-03-31 341
2003-06-30 302
2003-09-30 292
2003-12-31 340
2004-03-31 217
2004-06-30 210
2004-09-30 161
2004-12-31 241
2005-03-31 199
2005-06-30 287
2005-09-30 393
2005-12-31 389
2006-03-31 467
2006-06-30 411
2006-09-30 508
2006-12-31 778
2007-03-31 1104
2007-06-30 1009
2007-09-30 874
2007-12-31 753
2008-03-31 1394
2008-06-30 1567
2008-09-30 1295
2008-12-31 586
2009-03-31 616
2009-06-30 723
2009-09-30 767
2009-12-31 800
2010-03-31 746
2010-06-30 712
2010-09-30 490
2010-12-31 453
2011-03-31 638
2011-06-30 630
2011-09-30 763
2011-12-31 1084
2012-03-31 1128
2012-06-30 1055
2012-09-30 1230
2012-12-31 1411
2013-03-31 1250
2013-06-30 952
2013-09-30 752
2013-12-31 844
2014-03-31 539
2014-06-30 596
2014-09-30 569
2014-12-31 741
2015-03-31 1178
2015-06-30 612
2015-09-30 512
2015-12-31 701
2016-03-31 698
2016-06-30 743
2016-09-30 669
2016-12-31 823
2017-03-31 679
2017-06-30 486
2017-09-30 728
2017-12-31 492
2018-03-31 356
2018-06-30 398
2018-09-30 425
2018-12-31 614
2019-03-31 666
2019-06-30 957
2019-09-30 793
2019-12-31 614
2020-03-31 622
2020-06-30 666
2020-09-30 700
2020-12-31 541
2021-03-31 449
2021-06-30 395
2021-09-30 456
2021-12-31 540
2022-03-31 602
2022-06-30 1830
2022-09-30 781
2022-12-31 1003
2023-03-31 1197
2023-06-30 1310
2023-09-30 862