Quarter	US dollars
1986-09-30	98
1986-12-31	124
1987-03-31	130
1987-06-30	130
1987-09-30	130
1987-12-31	158
1988-03-31	145
1988-06-30	133
1988-09-30	133
1988-12-31	143
1989-03-31	142
1989-06-30	163
1989-09-30	148
1989-12-31	161
1990-03-31	153
1990-06-30	156
1990-09-30	155
1990-12-31	159
1991-03-31	138
1991-06-30	167
1991-09-30	143
1991-12-31	167
1992-03-31	208
1992-06-30	285
1992-09-30	303
1992-12-31	258
1993-03-31	257
1993-06-30	245
1993-09-30	251
1993-12-31	230
1994-03-31	243
1994-06-30	248
1994-09-30	245
1994-12-31	268
1995-03-31	283
1995-06-30	239
1995-09-30	324
1995-12-31	326
1996-03-31	294
1996-06-30	303
1996-09-30	314
1996-12-31	337
1997-03-31	369
1997-06-30	314
1997-09-30	314
1997-12-31	400
1998-03-31	409
1998-06-30	451
1998-09-30	510
1998-12-31	515
1999-03-31	549
1999-06-30	526
1999-09-30	603
1999-12-31	567
2000-03-31	593
2000-06-30	576
2000-09-30	596
2000-12-31	654
2001-03-31	614
2001-06-30	582
2001-09-30	605
2001-12-31	586
2002-03-31	550
2002-06-30	606
2002-09-30	621
2002-12-31	568
2003-03-31	569
2003-06-30	597
2003-09-30	685
2003-12-31	676
2004-03-31	594
2004-06-30	634
2004-09-30	718
2004-12-31	593
2005-03-31	594
2005-06-30	638
2005-09-30	633
2005-12-31	516
2006-03-31	520
2006-06-30	556
2006-09-30	508
2006-12-31	580
2007-03-31	650
2007-06-30	593
2007-09-30	958
2007-12-31	1042
2008-03-31	1091
2008-06-30	1100
2008-09-30	950
2008-12-31	915
2009-03-31	653
2009-06-30	882
2009-09-30	1003
2009-12-31	866
2010-03-31	881
2010-06-30	1004
2010-09-30	1103
2010-12-31	990
2011-03-31	931
2011-06-30	919
2011-09-30	978
2011-12-31	921
2012-03-31	1095
2012-06-30	943
2012-09-30	1290
2012-12-31	1113
2013-03-31	1159
2013-06-30	977
2013-09-30	1156
2013-12-31	944
2014-03-31	1139
2014-06-30	1236
2014-09-30	1100
2014-12-31	1098
2015-03-31	1224
2015-06-30	1192
2015-09-30	1031
2015-12-31	952
2016-03-31	1208
2016-06-30	1234
2016-09-30	1158
2016-12-31	1011
2017-03-31	1309
2017-06-30	1359
2017-09-30	1589
2017-12-31	1787
2018-03-31	1883
2018-06-30	1568
2018-09-30	1130
2018-12-31	1172
2019-03-31	1355
2019-06-30	974
2019-09-30	1201
2019-12-31	1170
2020-03-31	1070
2020-06-30	1245
2020-09-30	1784
2020-12-31	1455
2021-03-31	1610
2021-06-30	1481
2021-09-30	1645
2021-12-31	1627
2022-03-31	1760
2022-06-30	1497
2022-09-30	1181
2022-12-31	1325
2023-03-31	1274
2023-06-30	1151
2023-09-30	954