| -9.19 | -9.79 | 3.87 | 49.96 | 29.11 | -19.86 |  | 
Depreciation & Amortization      | 26.15 | 25.93 | 28.48 | 24.81 | 8.03 | 6.74 |  | 
 | 1.18 | 1.15 | 1.07 | 0.63 | 0.3 | 0.28 |  | 
Gain (Loss) on Sale of Assets      | -0.81 | -0.81 | -0.6 | -0.01 | -7.69 | - |  | 
Gain (Loss) on Sale of Investments      | - | - | - | - | -2.63 | - |  | 
 | - | - | - | - | 0.52 | 3.64 |  | 
 | 4.72 | 4.88 | 4.77 | 4.49 | 2.94 | 1.82 |  | 
Income (Loss) on Equity Investments      | -1.74 | -1.64 | -17.04 | -66.43 | -30.77 | 6.02 |  | 
Change in Accounts Payable      | 3.67 | 2.9 | -0.68 | -3.92 | -4.18 | -0.42 |  | 
Change in Other Net Operating Assets      | 0.37 | 0.56 | -0.79 | 5.14 | 2.2 | -0.11 |  | 
Other Operating Activities      | 0.66 | 0.7 | 0.52 | 0.78 | 1.65 | 0.13 |  | 
 | 25.27 | 24.14 | 19.61 | 15.45 | -0.53 | -1.76 |  | 
Operating Cash Flow Growth      | 21.19% | 23.14% | 26.90% | - | - | - |  | 
Acquisition of Real Estate Assets      | -7.07 | -6.15 | -9.64 | -6.3 | -1.31 | -0.89 |  | 
Sale of Real Estate Assets      | 0.95 | 0.95 | 0.71 | 4.39 | 24.63 | - |  | 
Net Sale / Acq. of Real Estate Assets      | -6.12 | -5.2 | -8.93 | -1.91 | 23.32 | -0.89 |  | 
Investment in Marketable & Equity Securities      | 3.89 | 4.54 | 25.37 | -13.93 | -45.42 | 1.57 |  | 
Other Investing Activities      | - | - | 0.24 | 0.06 | - | - |  | 
 | -20.47 | -18.91 | 16.68 | -15.78 | -22.1 | 4.84 |  | 
 | - | - | - | - | - | 5 |  | 
 | - | 27.38 | 21.17 | 61.95 | 89.68 | - |  | 
 | 27.38 | 27.38 | 21.17 | 61.95 | 89.68 | 5 |  | 
 | - | - | - | - | - | -5 |  | 
 | - | -3.89 | -22.31 | -67.89 | -50.29 | -3.04 |  | 
 | -4.23 | -3.89 | -22.31 | -67.89 | -50.29 | -8.04 |  | 
 | 23.14 | 23.49 | -1.14 | -5.93 | 39.39 | -3.04 |  | 
 | 3.38 | 3.63 | 3.03 | 11.22 | 9.62 | 12.08 |  | 
Repurchase of Common Stock      | -2.68 | -3.5 | -14.4 | - | - | -0.62 |  | 
 | -18.8 | -18.64 | -18.91 | -17.86 | -15.77 | -15.12 |  | 
Other Financing Activities      | -1.39 | -1.41 | -0.82 | -0.85 | -0.38 | -0.12 |  | 
 | 8.45 | 8.8 | 4.05 | -13.75 | 10.24 | -3.73 |  | 
 | 21.24 | 20.87 | 20.43 | 14.09 | 6.52 | 6.89 |  | 
 | - | -0.44 | 0.69 | 0.28 | 0.17 | 0.29 |  | 
 | 9.48 | 25.81 | 26.41 | 33.84 | 2.52 | 3.92 |  | 
 | 22.65 | 38.79 | 39.19 | 42.9 | 6.44 | 8.08 |  | 
Change in Working Capital      | 4.04 | 3.46 | -1.47 | 1.22 | -1.98 | -0.53 |  |