Quarter	US dollars
1986-09-30	212
1986-12-31	211
1987-03-31	186
1987-06-30	250
1987-09-30	182
1987-12-31	249
1988-03-31	161
1988-06-30	254
1988-09-30	259
1988-12-31	254
1989-03-31	199
1989-06-30	244
1989-09-30	311
1989-12-31	207
1990-03-31	202
1990-06-30	263
1990-09-30	210
1990-12-31	228
1991-03-31	184
1991-06-30	202
1991-09-30	261
1991-12-31	267
1992-03-31	245
1992-06-30	271
1992-09-30	244
1992-12-31	219
1993-03-31	252
1993-06-30	270
1993-09-30	72
1993-12-31	75
1994-03-31	81
1994-06-30	79
1994-09-30	89
1994-12-31	79
1995-03-31	81
1995-06-30	76
1995-09-30	75
1995-12-31	78
1996-03-31	92
1996-06-30	92
1996-09-30	91
1996-12-31	145
1997-03-31	155
1997-06-30	103
1997-09-30	98
1997-12-31	187
1998-03-31	168
1998-06-30	132
1998-09-30	85
1998-12-31	85
1999-03-31	82
1999-06-30	81
1999-09-30	88
1999-12-31	86
2000-03-31	78
2000-06-30	66
2000-09-30	70
2000-12-31	67
2001-03-31	59
2001-06-30	61
2001-09-30	75
2001-12-31	139
2002-03-31	65
2002-06-30	92
2002-09-30	115
2002-12-31	115
2003-03-31	93
2003-06-30	83
2003-09-30	109
2003-12-31	144
2004-03-31	158
2004-06-30	102
2004-09-30	98
2004-12-31	156
2005-03-31	112
2005-06-30	110
2005-09-30	109
2005-12-31	84
2006-03-31	76
2006-06-30	183
2006-09-30	96
2006-12-31	82
2007-03-31	92
2007-06-30	83
2007-09-30	91
2007-12-31	255
2008-03-31	319
2008-06-30	329
2008-09-30	239
2008-12-31	273
2009-03-31	279
2009-06-30	149
2009-09-30	156
2009-12-31	222
2010-03-31	324
2010-06-30	543
2010-09-30	315
2010-12-31	633
2011-03-31	230
2011-06-30	262
2011-09-30	235
2011-12-31	212
2012-03-31	205
2012-06-30	189
2012-09-30	170
2012-12-31	232
2013-03-31	191
2013-06-30	168
2013-09-30	188
2013-12-31	165
2014-03-31	146
2014-06-30	184
2014-09-30	158
2014-12-31	200
2015-03-31	214
2015-06-30	360
2015-09-30	417
2015-12-31	410
2016-03-31	560
2016-06-30	216
2016-09-30	361
2016-12-31	275
2017-03-31	156
2017-06-30	113
2017-09-30	120
2017-12-31	222
2018-03-31	164
2018-06-30	182
2018-09-30	202
2018-12-31	201
2019-03-31	162
2019-06-30	108
2019-09-30	137
2019-12-31	174
2020-03-31	185
2020-06-30	213
2020-09-30	363
2020-12-31	441
2021-03-31	327
2021-06-30	229
2021-09-30	272
2021-12-31	208
2022-03-31	160
2022-06-30	156
2022-09-30	192
2022-12-31	152
2023-03-31	171
2023-06-30	195
2023-09-30	154