date,spreturn
01JUL1996,-0.0444405
01AUG1996,0.02192753
01SEP1996,0.05603521
01OCT1996,0.02679825
01NOV1996,0.07645531
01DEC1996,-0.01981451
01JAN1997,0.06277898
01FEB1997,0.007752369
01MAR1997,-0.04165272
01APR1997,0.06027384
01MAY1997,0.06140064
01JUN1997,0.04410322
01JUL1997,0.08038764
01AUG1997,-0.05497012
01SEP1997,0.05388615
01OCT1997,-0.03260484
01NOV1997,0.04632092
01DEC1997,0.01714711
01JAN1998,0.01199363
01FEB1998,0.07195595
01MAR1998,0.05133564
01APR1998,0.01127549
01MAY1998,-0.01767412
01JUN1998,0.0409699
01JUL1998,-0.0101089
01AUG1998,-0.1431244
01SEP1998,0.06317615
01OCT1998,0.0801108
01NOV1998,0.06216503
01DEC1998,0.05967283
01JAN1999,0.04280011
01FEB1999,-0.03193455
01MAR1999,0.03897899
01APR1999,0.03755879
01MAY1999,-0.023162
01JUN1999,0.05443073
01JUL1999,-0.03021994
01AUG1999,-0.004988728
01SEP1999,-0.02807923
01OCT1999,0.06423803
01NOV1999,0.02082215
01DEC1999,0.06257874
01JAN2000,-0.04960637
01FEB2000,-0.01747049
01MAR2000,0.09849202
01APR2000,-0.03158458
01MAY2000,-0.02241224
01JUN2000,0.02621863
01JUL2000,-0.01199803
01AUG2000,0.06376137
01SEP2000,-0.05194258
01OCT2000,-0.004217262
01NOV2000,-0.0783155
01DEC2000,0.005664312
01JAN2001,0.03225232
01FEB2001,-0.09110747
01MAR2001,-0.06349941
01APR2001,0.07776605
01MAY2001,0.007033359
01JUN2001,-0.02441705
01JUL2001,-0.009329574
01AUG2001,-0.06343463
01SEP2001,-0.08042622
01OCT2001,0.01955833
01NOV2001,0.07878806
01DEC2001,0.009049609
01JAN2002,-0.01432143
01FEB2002,-0.01948139
01MAR2002,0.03757254
01APR2002,-0.06102109
01MAY2002,-0.007799893
01JUN2002,-0.0713472
01JUL2002,-0.07397465
01AUG2002,0.007043081
01SEP2002,-0.1090185
01OCT2002,0.08859929
01NOV2002,0.05902411
01DEC2002,-0.05883433
01JAN2003,-0.02657915
01FEB2003,-0.01524638
01MAR2003,0.01030759
01APR2003,0.08277372
01MAY2003,0.05325076
01JUN2003,0.01281586
01JUL2003,0.017932
01AUG2003,0.01959652
01SEP2003,-0.01073655
01OCT2003,0.05556035
01NOV2003,0.009259802
01DEC2003,0.05184164
01JAN2004,0.01907768
01FEB2004,0.01440326
01MAR2004,-0.01501144
01APR2004,-0.01558432
01MAY2004,0.01371121
01JUN2004,0.01949006
01JUL2004,-0.03293187
01AUG2004,0.003807327
01SEP2004,0.01081651
01OCT2004,0.01497261
01NOV2004,0.04056317
01DEC2004,0.03373373
01JAN2005,-0.02382419
01FEB2005,0.02115102
01MAR2005,-0.01724011
01APR2005,-0.01892555
01MAY2005,0.03173591
01JUN2005,0.001716826
01JUL2005,0.03737359
01AUG2005,-0.009159098
01SEP2005,0.008001387
01OCT2005,-0.01555206
01NOV2005,0.03836533
01DEC2005,-0.000060438
01JAN2006,0.02642563
01FEB2006,0.002425405
01MAR2006,0.01291099
01APR2006,0.01205801
01MAY2006,-0.02831766
01JUN2006,0.001558064
01JUL2006,0.005552961
01AUG2006,0.02416751
01SEP2006,0.02648548
01OCT2006,0.03251451
01NOV2006,0.01838137
01DEC2006,0.01375129