|  | 279 | 396 | 839 | 1,880 | 2,607 | 797 |  | 
| Depreciation & Amortization | 501 | 502 | 500 | 480 | 477 | 472 |  | 
| Gain (Loss) on Sale of Assets | - | - | -84 | - | -32 | -182 |  | 
|  | 44 | 43 | 36 | 33 | 30 | 30 |  | 
| Change in Accounts Receivable | 36 | 45 | 4 | 149 | -57 | -141 |  | 
| Change in Accounts Payable | 15 | -38 | 35 | -111 | 113 | -17 |  | 
| Change in Other Net Operating Assets | 3 | 19 | -13 | -12 | -25 | -4 |  | 
| Other Operating Activities | 70 | 82 | 88 | 551 | 24 | 534 |  | 
|  | 918 | 1,008 | 1,433 | 2,832 | 3,159 | 1,529 |  | 
| Operating Cash Flow Growth | -32.85% | -29.66% | -49.40% | -10.35% | 106.61% | 58.28% |  | 
| Acquisition of Real Estate Assets | -649 | -667 | -680 | -763 | -590 | -706 |  | 
| Sale of Real Estate Assets | - | - | 166 | - | 261 | 526 |  | 
| Net Sale / Acq. of Real Estate Assets | -649 | -667 | -514 | -763 | -329 | -180 |  | 
| Other Investing Activities | 25 | 31 | 6 | 4 | 4 | 365 |  | 
|  | -624 | -636 | -508 | -759 | -325 | 185 |  | 
|  | - | - | - | - | - | 550 |  | 
|  | - | - | 992 | 881 | - | 732 |  | 
|  | 299 | - | 992 | 881 | - | 1,282 |  | 
|  | - | - | - | - | - | -780 |  | 
|  | - | - | -978 | -1,203 | -375 | -1,492 |  | 
|  | -210 | - | -978 | -1,203 | -375 | -2,272 |  | 
|  | 89 | - | 14 | -322 | -375 | -990 |  | 
|  | - | - | - | - | - | 33 |  | 
| Repurchase of Common Stock | -180 | -154 | -131 | -543 | -100 | - |  | 
|  | -594 | -582 | -556 | -533 | -509 | -381 |  | 
|  | -594 | -582 | -556 | -533 | -509 | -381 |  | 
| Other Financing Activities | -14 | -14 | -9 | -9 | 29 | -20 |  | 
|  | -405 | -480 | -417 | -418 | 1,504 | 356 |  | 
|  | 265 | 259 | 283 | 283 | 315 | 365 |  | 
|  | 62 | 60 | 63 | 566 | 609 | 176 |  | 
|  | 496.13 | 546 | 785.63 | 1,797 | 2,336 | 1,177 |  | 
|  | 663 | 714.13 | 960.63 | 1,966 | 2,532 | 1,396 |  | 
| Change in Working Capital | 24 | -15 | 54 | -112 | 53 | -122 |  |