NSTAR

CUSIP: 67019E107 Class: COM

BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp's Holding History (CIK: 0001228242)

Note: Option positions (PUT/CALL) are excluded.

Q1 2012
Shares 34,846 Value ($000) $1,695 Avg Close — Range —
Q4 2011
Shares 29,862 Value ($000) $1,402 Avg Close — Range —
Q3 2011
Shares 19,892 Value ($000) $891 Avg Close — Range —