Quarterly US dollars
1986-09-30 232
1986-12-31 210
1987-03-31 215
1987-06-30 197
1987-09-30 206
1987-12-31 192
1988-03-31 185
1988-06-30 172
1988-09-30 170
1988-12-31 170
1989-03-31 153
1989-06-30 140
1989-09-30 136
1989-12-31 145
1990-03-31 140
1990-06-30 144
1990-09-30 113
1990-12-31 109
1991-03-31 90
1991-06-30 87
1991-09-30 77
1991-12-31 116
1992-03-31 107
1992-06-30 109
1992-09-30 178
1992-12-31 147
1993-03-31 142
1993-06-30 122
1993-09-30 130
1993-12-31 123
1994-03-31 167
1994-06-30 169
1994-09-30 182
1994-12-31 192
1995-03-31 168
1995-06-30 131
1995-09-30 134
1995-12-31 116
1996-03-31 160
1996-06-30 203
1996-09-30 192
1996-12-31 235
1997-03-31 257
1997-06-30 231
1997-09-30 323
1997-12-31 308
1998-03-31 332
1998-06-30 367
1998-09-30 446
1998-12-31 404
1999-03-31 351
1999-06-30 371
1999-09-30 363
1999-12-31 338
2000-03-31 293
2000-06-30 327
2000-09-30 388
2000-12-31 376
2001-03-31 400
2001-06-30 396
2001-09-30 428
2001-12-31 390
2002-03-31 336
2002-06-30 403
2002-09-30 419
2002-12-31 414
2003-03-31 364
2003-06-30 353
2003-09-30 326
2003-12-31 381
2004-03-31 326
2004-06-30 348
2004-09-30 544
2004-12-31 528
2005-03-31 515
2005-06-30 504
2005-09-30 494
2005-12-31 540
2006-03-31 459
2006-06-30 583
2006-09-30 814
2006-12-31 570
2007-03-31 669
2007-06-30 745
2007-09-30 613
2007-12-31 593
2008-03-31 640
2008-06-30 615
2008-09-30 652
2008-12-31 544
2009-03-31 473
2009-06-30 555
2009-09-30 531
2009-12-31 426
2010-03-31 349
2010-06-30 425
2010-09-30 330
2010-12-31 310
2011-03-31 220
2011-06-30 340
2011-09-30 418
2011-12-31 356
2012-03-31 368
2012-06-30 204
2012-09-30 272
2012-12-31 274
2013-03-31 245
2013-06-30 201
2013-09-30 122
2013-12-31 130
2014-03-31 152
2014-06-30 147
2014-09-30 133
2014-12-31 79
2015-03-31 95
2015-06-30 83
2015-09-30 79
2015-12-31 77
2016-03-31 74
2016-06-30 134
2016-09-30 142
2016-12-31 180
2017-03-31 213
2017-06-30 236
2017-09-30 192
2017-12-31 189
2018-03-31 217
2018-06-30 229
2018-09-30 199
2018-12-31 199
2019-03-31 204
2019-06-30 278
2019-09-30 202
2019-12-31 188
2020-03-31 182
2020-06-30 192
2020-09-30 210
2020-12-31 220
2021-03-31 183
2021-06-30 236
2021-09-30 214
2021-12-31 183
2022-03-31 196
2022-06-30 164
2022-09-30 162
2022-12-31 149
2023-03-31 129
2023-06-30 126
2023-09-30 130