Quarter	US dollars
1986-09-30	181
1986-12-31	193
1987-03-31	206
1987-06-30	199
1987-09-30	224
1987-12-31	269
1988-03-31	235
1988-06-30	263
1988-09-30	294
1988-12-31	324
1989-03-31	364
1989-06-30	315
1989-09-30	355
1989-12-31	356
1990-03-31	404
1990-06-30	395
1990-09-30	380
1990-12-31	436
1991-03-31	377
1991-06-30	397
1991-09-30	463
1991-12-31	464
1992-03-31	501
1992-06-30	521
1992-09-30	510
1992-12-31	449
1993-03-31	461
1993-06-30	523
1993-09-30	555
1993-12-31	493
1994-03-31	524
1994-06-30	608
1994-09-30	677
1994-12-31	552
1995-03-31	418
1995-06-30	474
1995-09-30	534
1995-12-31	528
1996-03-31	499
1996-06-30	556
1996-09-30	584
1996-12-31	621
1997-03-31	523
1997-06-30	523
1997-09-30	475
1997-12-31	365
1998-03-31	310
1998-06-30	338
1998-09-30	375
1998-12-31	351
1999-03-31	393
1999-06-30	406
1999-09-30	446
1999-12-31	460
2000-03-31	414
2000-06-30	372
2000-09-30	375
2000-12-31	390
2001-03-31	379
2001-06-30	387
2001-09-30	419
2001-12-31	374
2002-03-31	359
2002-06-30	365
2002-09-30	385
2002-12-31	350
2003-03-31	355
2003-06-30	350
2003-09-30	351
2003-12-31	372
2004-03-31	340
2004-06-30	307
2004-09-30	310
2004-12-31	364
2005-03-31	348
2005-06-30	303
2005-09-30	282
2005-12-31	314
2006-03-31	317
2006-06-30	318
2006-09-30	411
2006-12-31	399
2007-03-31	429
2007-06-30	355
2007-09-30	405
2007-12-31	378
2008-03-31	360
2008-06-30	426
2008-09-30	349
2008-12-31	253
2009-03-31	220
2009-06-30	226
2009-09-30	214
2009-12-31	267
2010-03-31	231
2010-06-30	201
2010-09-30	228
2010-12-31	225
2011-03-31	245
2011-06-30	248
2011-09-30	236
2011-12-31	256
2012-03-31	184
2012-06-30	159
2012-09-30	162
2012-12-31	135
2013-03-31	119
2013-06-30	121
2013-09-30	123
2013-12-31	119
2014-03-31	106
2014-06-30	163
2014-09-30	139
2014-12-31	131
2015-03-31	131
2015-06-30	137
2015-09-30	114
2015-12-31	124
2016-03-31	130
2016-06-30	120
2016-09-30	120
2016-12-31	114
2017-03-31	107
2017-06-30	120
2017-09-30	105
2017-12-31	119
2018-03-31	119
2018-06-30	102
2018-09-30	111
2018-12-31	127
2019-03-31	146
2019-06-30	102
2019-09-30	112
2019-12-31	135
2020-03-31	129
2020-06-30	130
2020-09-30	118
2020-12-31	122
2021-03-31	119
2021-06-30	121
2021-09-30	103
2021-12-31	119
2022-03-31	135
2022-06-30	111
2022-09-30	84
2022-12-31	90
2023-03-31	94
2023-06-30	119
2023-09-30	97