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The Standard & Poor's/Investortools - Massachusetts Index
October 2011
(Expanded Deletion Criteria)
See Explanation
Cumulative Returns Data

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Period # Of
Cusips		 Total
Return		 Beg. Mkt.
Val (Mil)		 Mkt. Wt.
Coupon 		Mkt. Wt.
Beginning Yield		 Mkt. Wt.
Ending Yield		 Ending Mod
Duration		 Ending Yrs. To
Price Date
October 2011 1,881 -0.596% 51,643 5.108% 2.645% 2.784% 5.30 7.09
One Year History
(Indices and data produced before November 2002 reflect the original limited deletion criteria.)
Period # Of
Cusips		 Total
Return		 Beg. Mkt.
Val (Mil)		 Mkt. Wt.
Coupon 		Mkt. Wt.
Beginning Yield		 Mkt. Wt.
Ending Yield		 Ending Mod
Duration		 Ending Yrs. To
Price Date
Sep 2011 1,872 1.014% 51,186 5.107% 2.736% 2.635% 5.32 7.01
Aug 2011 1,872 1.809% 50,711 5.109% 2.979% 2.732% 5.52 7.49
Jul 2011 1,873 0.885% 51,161 5.108% 3.067% 2.954% 5.62 7.86
Jun 2011 1,840 0.102% 50,642 5.116% 3.031% 3.054% 5.66 8.05
May 2011 1,827 1.758% 49,669 5.116% 3.249% 3.023% 5.75 8.24
Apr 2011 1,797 1.681% 48,388 5.114% 3.439% 3.228% 5.93 8.71
Mar 2011 1,793 -0.274% 48,571 5.114% 3.391% 3.439% 6.35 9.67
Feb 2011 1,802 1.614% 48,152 5.116% 3.559% 3.392% 6.20 9.18
Jan 2011 1,825 -0.448% 49,273 5.124% 3.477% 3.562% 6.50 10.00
Dec 2010 1,813 -1.771% 50,107 5.131% 3.210% 3.520% 6.25 9.41
Nov 2010 1,795 -1.948% 50,693 5.134% 2.851% 3.179% 5.80 8.21
Oct 2010 1,814 -0.503% 51,437 5.137% 2.735% 2.831% 5.54 7.37
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