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CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL (USD $) | Total USD ($) | Subtotal | Class A USD ($) | Class B USD ($) | General Partnership USD ($) | Treasury Units
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2009 | $ (21,332,823) |  | $ (17,069,520) | $ (4,050,138) | $ (213,165) |
Balance (in units) at Dec. 31, 2009 | 132,346 | 180,225 | 144,180 | 34,243 | 1,802 | 47,879
Increase (Decrease) in Partners' Capital |  |  |  |  |  |
Distributions to Partners | (3,687,600) |  | (2,950,080) | (700,644) | (36,876) |
Stock buyback | (540,911) |  | (432,920) | (102,591) | (5,400) |
Stock Buyback (in units) | (862) |  |  |  |  | 862
Net income (loss) | (1,359,232) |  | (1,087,386) | (258,254) | (13,592) |
Balance at Dec. 31, 2010 | (26,920,566) |  | (21,539,906) | (5,111,627) | (269,033) |
Balance (in units) at Dec. 31, 2010 | 131,484 | 180,225 | 144,180 | 34,243 | 1,802 | 48,741
Increase (Decrease) in Partners' Capital |  |  |  |  |  |
Distributions to Partners | (3,681,566) |  | (2,945,253) | (699,498) | (36,815) |
Net income (loss) | 9,291,281 |  | 7,433,025 | 1,765,343 | 92,913 |
Balance at Dec. 31, 2011 | (21,310,851) |  | (17,052,134) | (4,045,782) | (212,935) |
Balance (in units) at Dec. 31, 2011 | 131,484 | 180,225 | 144,180 | 34,243 | 1,802 | 48,741
Increase (Decrease) in Partners' Capital |  |  |  |  |  |
Distributions to Partners | (3,932,410) |  | (3,145,928) | (747,158) | (39,324) |
Stock buyback | (906,214) |  | (726,058) | (171,148) | (9,008) |
Stock Buyback (in units) | (1,040) |  |  | 198 |  | 1,040
Net income (loss) | 3,633,798 |  | 2,907,038 | 690,422 | 36,338 |
Balance at Dec. 31, 2012 | $ (22,515,677) |  | $ (18,017,082) | $ (4,273,666) | $ (224,929) |
Balance (in units) at Dec. 31, 2012 | 130,444 | 180,225 | 144,180 | 34,243 | 1,802 | 49,781

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