Quarter	US dollars
1986-09-30	1899
1986-12-31	2109
1987-03-31	2201
1987-06-30	2230
1987-09-30	2171
1987-12-31	2254
1988-03-31	2264
1988-06-30	2229
1988-09-30	2215
1988-12-31	2225
1989-03-31	2136
1989-06-30	2078
1989-09-30	2098
1989-12-31	2076
1990-03-31	2047
1990-06-30	2013
1990-09-30	1977
1990-12-31	1912
1991-03-31	1733
1991-06-30	1602
1991-09-30	1532
1991-12-31	1760
1992-03-31	1768
1992-06-30	1923
1992-09-30	1821
1992-12-31	1776
1993-03-31	1872
1993-06-30	1731
1993-09-30	1765
1993-12-31	1691
1994-03-31	1558
1994-06-30	1514
1994-09-30	1524
1994-12-31	1375
1995-03-31	1162
1995-06-30	1115
1995-09-30	1022
1995-12-31	979
1996-03-31	941
1996-06-30	920
1996-09-30	912
1996-12-31	908
1997-03-31	881
1997-06-30	808
1997-09-30	752
1997-12-31	686
1998-03-31	741
1998-06-30	635
1998-09-30	664
1998-12-31	660
1999-03-31	581
1999-06-30	395
1999-09-30	379
1999-12-31	361
2000-03-31	302
2000-06-30	294
2000-09-30	249
2000-12-31	521
2001-03-31	258
2001-06-30	235
2001-09-30	185
2001-12-31	152
2002-03-31	176
2002-06-30	196
2002-09-30	191
2002-12-31	172
2003-03-31	169
2003-06-30	198
2003-09-30	220
2003-12-31	227
2004-03-31	190
2004-06-30	210
2004-09-30	241
2004-12-31	266
2005-03-31	203
2005-06-30	223
2005-09-30	272
2005-12-31	245
2006-03-31	224
2006-06-30	216
2006-09-30	98
2006-12-31	165
2007-03-31	149
2007-06-30	142
2007-09-30	131
2007-12-31	156
2008-03-31	117
2008-06-30	237
2008-09-30	130
2008-12-31	77
2009-03-31	103
2009-06-30	90
2009-09-30	91
2009-12-31	141
2010-03-31	222
2010-06-30	126
2010-09-30	154
2010-12-31	129
2011-03-31	122
2011-06-30	88
2011-09-30	221
2011-12-31	148
2012-03-31	123
2012-06-30	181
2012-09-30	57
2012-12-31	81
2013-03-31	64
2013-06-30	228
2013-09-30	223
2013-12-31	227
2014-03-31	195
2014-06-30	199
2014-09-30	178
2014-12-31	44
2015-03-31	22
2015-06-30	14
2015-09-30	13
2015-12-31	11
2016-03-31	7
2016-06-30	12
2016-09-30	8
2016-12-31	11
2017-03-31	6
2017-06-30	24
2017-09-30	3
2017-12-31	39
2018-03-31	11
2018-06-30	5
2018-09-30	11
2018-12-31	12
2019-03-31	27
2019-06-30	3
2019-09-30	80
2019-12-31	29
2020-03-31	89
2020-06-30	118
2020-09-30	94
2020-12-31	105
2021-03-31	115
2021-06-30	100
2021-09-30	58
2021-12-31	57
2022-03-31	59
2022-06-30	83
2022-09-30	23
2022-12-31	75
2023-03-31	59
2023-06-30	25
2023-09-30	103