Quarterly US dollars
1986-09-30 175
1986-12-31 170
1987-03-31 172
1987-06-30 178
1987-09-30 156
1987-12-31 231
1988-03-31 226
1988-06-30 223
1988-09-30 215
1988-12-31 234
1989-03-31 259
1989-06-30 268
1989-09-30 252
1989-12-31 290
1990-03-31 341
1990-06-30 265
1990-09-30 272
1990-12-31 321
1991-03-31 282
1991-06-30 261
1991-09-30 273
1991-12-31 273
1992-03-31 257
1992-06-30 257
1992-09-30 288
1992-12-31 251
1993-03-31 228
1993-06-30 211
1993-09-30 212
1993-12-31 274
1994-03-31 674
1994-06-30 591
1994-09-30 635
1994-12-31 466
1995-03-31 509
1995-06-30 415
1995-09-30 438
1995-12-31 510
1996-03-31 440
1996-06-30 339
1996-09-30 450
1996-12-31 302
1997-03-31 1047
1997-06-30 754
1997-09-30 1081
1997-12-31 1139
1998-03-31 959
1998-06-30 2008
1998-09-30 1843
1998-12-31 2186
1999-03-31 2201
1999-06-30 1346
1999-09-30 2266
1999-12-31 1595
2000-03-31 1822
2000-06-30 2814
2000-09-30 3079
2000-12-31 2912
2001-03-31 2457
2001-06-30 2015
2001-09-30 2410
2001-12-31 503
2002-03-31 187
2002-06-30 167
2002-09-30 205
2002-12-31 260
2003-03-31 232
2003-06-30 244
2003-09-30 205
2003-12-31 236
2004-03-31 238
2004-06-30 195
2004-09-30 141
2004-12-31 235
2005-03-31 254
2005-06-30 449
2005-09-30 335
2005-12-31 375
2006-03-31 347
2006-06-30 380
2006-09-30 443
2006-12-31 524
2007-03-31 450
2007-06-30 414
2007-09-30 521
2007-12-31 448
2008-03-31 627
2008-06-30 559
2008-09-30 558
2008-12-31 531
2009-03-31 812
2009-06-30 545
2009-09-30 405
2009-12-31 344
2010-03-31 345
2010-06-30 371
2010-09-30 347
2010-12-31 362
2011-03-31 526
2011-06-30 408
2011-09-30 312
2011-12-31 241
2012-03-31 426
2012-06-30 227
2012-09-30 251
2012-12-31 413
2013-03-31 341
2013-06-30 191
2013-09-30 266
2013-12-31 176
2014-03-31 194
2014-06-30 166
2014-09-30 175
2014-12-31 129
2015-03-31 178
2015-06-30 168
2015-09-30 185
2015-12-31 212
2016-03-31 221
2016-06-30 181
2016-09-30 530
2016-12-31 243
2017-03-31 195
2017-06-30 188
2017-09-30 198
2017-12-31 214
2018-03-31 300
2018-06-30 314
2018-09-30 408
2018-12-31 372
2019-03-31 376
2019-06-30 472
2019-09-30 239
2019-12-31 420
2020-03-31 455
2020-06-30 267
2020-09-30 179
2020-12-31 174
2021-03-31 200
2021-06-30 225
2021-09-30 202
2021-12-31 180
2022-03-31 237
2022-06-30 168
2022-09-30 219
2022-12-31 239
2023-03-31 532
2023-06-30 610
2023-09-30 814