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CONSOLIDATED STATEMENTS OF CHANGES IN NET ASSETS (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012 | Mar. 31, 2011
Operations: |  |  |
Net investment income | $ 1,907 | $ 2,544 | $ 1,804
Net realized gain on investments | 88,433 | 10,578 | 38,885
Net increase in unrealized appreciation of investments | 16,367 | 78,635 | 12,999
Increase in net assets from operations | 106,707 | 91,757 | 53,688
Distributions from: |  |  |
Undistributed net investment income | (3,025) | (3,003) | (2,994)
Net realized gains | (77,301) | 0 | 0
Net realized gains deemed distributed to shareholders | (3,215) | (3,216) | (45,748)
Capital share transactions: |  |  |
Allocated increase in share value for deemed distribution | 3,215 | 3,216 | 45,748
Change in pension plan funded status | 194 | (430) | (89)
Exercise of employee stock options | 3,981 | 99 | 745
Stock option and restricted awards expense | 515 | 1,050 | 957
Increase in net assets | 31,071 | 89,473 | 52,307
Net assets, beginning of period | 628,706 | 539,233 | 486,926
Net assets, end of period | $ 659,777 | $ 628,706 | $ 539,233

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