Quarterly US dollars
1986-09-30 244
1986-12-31 241
1987-03-31 234
1987-06-30 259
1987-09-30 255
1987-12-31 289
1988-03-31 225
1988-06-30 217
1988-09-30 307
1988-12-31 238
1989-03-31 236
1989-06-30 206
1989-09-30 246
1989-12-31 258
1990-03-31 254
1990-06-30 236
1990-09-30 316
1990-12-31 306
1991-03-31 353
1991-06-30 498
1991-09-30 582
1991-12-31 431
1992-03-31 437
1992-06-30 619
1992-09-30 504
1992-12-31 510
1993-03-31 414
1993-06-30 516
1993-09-30 559
1993-12-31 422
1994-03-31 379
1994-06-30 325
1994-09-30 367
1994-12-31 582
1995-03-31 377
1995-06-30 466
1995-09-30 348
1995-12-31 299
1996-03-31 393
1996-06-30 440
1996-09-30 517
1996-12-31 369
1997-03-31 374
1997-06-30 488
1997-09-30 572
1997-12-31 608
1998-03-31 690
1998-06-30 573
1998-09-30 541
1998-12-31 502
1999-03-31 545
1999-06-30 467
1999-09-30 456
1999-12-31 391
2000-03-31 368
2000-06-30 545
2000-09-30 520
2000-12-31 495
2001-03-31 298
2001-06-30 271
2001-09-30 323
2001-12-31 176
2002-03-31 171
2002-06-30 199
2002-09-30 302
2002-12-31 143
2003-03-31 228
2003-06-30 300
2003-09-30 671
2003-12-31 1141
2004-03-31 939
2004-06-30 386
2004-09-30 328
2004-12-31 282
2005-03-31 287
2005-06-30 302
2005-09-30 379
2005-12-31 573
2006-03-31 500
2006-06-30 730
2006-09-30 542
2006-12-31 460
2007-03-31 672
2007-06-30 1133
2007-09-30 1073
2007-12-31 510
2008-03-31 523
2008-06-30 550
2008-09-30 764
2008-12-31 458
2009-03-31 356
2009-06-30 655
2009-09-30 731
2009-12-31 751
2010-03-31 707
2010-06-30 557
2010-09-30 577
2010-12-31 431
2011-03-31 387
2011-06-30 503
2011-09-30 459
2011-12-31 320
2012-03-31 360
2012-06-30 388
2012-09-30 294
2012-12-31 249
2013-03-31 224
2013-06-30 396
2013-09-30 589
2013-12-31 541
2014-03-31 504
2014-06-30 521
2014-09-30 476
2014-12-31 474
2015-03-31 670
2015-06-30 858
2015-09-30 590
2015-12-31 695
2016-03-31 496
2016-06-30 458
2016-09-30 244
2016-12-31 286
2017-03-31 464
2017-06-30 331
2017-09-30 509
2017-12-31 283
2018-03-31 351
2018-06-30 364
2018-09-30 320
2018-12-31 134
2019-03-31 246
2019-06-30 353
2019-09-30 219
2019-12-31 107
2020-03-31 146
2020-06-30 389
2020-09-30 356
2020-12-31 344
2021-03-31 446
2021-06-30 791
2021-09-30 436
2021-12-31 265
2022-03-31 371
2022-06-30 561
2022-09-30 358
2022-12-31 451
2023-03-31 413
2023-06-30 536
2023-09-30 433