|                                                                               |   | Three Months Ended |       |   | Nine Months Ended |   |
|------------------------------------------------------------------------------------|--------|--------------------|------------|--------|-------------------|--------|
|                                                                               |   | September 30,      |       |   | September 30,     |   |   | September 30, |   |   | September 30, |   |
|                                                                               |   | 2011               |       |   | 2010              |   |   | 2011 |   |   | 2010 |   |
|                                                                               |   |               |       |   |              |   |   |   |   |   |   |   |
| Profit                                                                             |   | $                  | 93         |   |              | $      | 73 |   |   | $ | 283 |   |   | $ | 208 |   |
|                                                                               |   |               |       |   |              |   |   |   |   |   |   |   |   |   |   |   |
| Add:                                                                               |   |               |       |   |              |   |   |   |   |   |   |   |   |   |   |   |
|   Provision for income taxes                                             |   |               | 29         |   |              |   | 13 |   |   |   | 98 |   |   |   | 39 |   |
|                                                                               |   |               |       |   |              |   |   |   |   |   |   |   |   |   |   |   |
| Profit before income taxes                                                         |   | $                  | 122        |   |              | $      | 86 |   |   | $ | 381 |   |   | $ | 247 |   |
|                                                                               |   |               |       |   |              |   |   |   |   |   |   |   |   |   |   |   |
| Fixed charges:                                                                     |   |               |       |   |              |   |   |   |   |   |   |   |   |   |   |   |
|   Interest expense                                                       |   | $                  | 211        |   |              | $      | 228 |   |   | $ | 624 |   |   | $ | 696 |   |
|   Rentals at computed interest*                                          |   |               | 1          |   |              |   | 1 |   |   |   | 4 |   |   |   | 4 |   |
|                                                                               |   |               |       |   |              |   |   |   |   |   |   |   |   |   |   |   |
| Total fixed charges                                                                |   | $                  | 212        |   |              | $      | 229 |   |   | $ | 628 |   |   | $ | 700 |   |
|                                                                               |   |               |       |   |              |   |   |   |   |   |   |   |   |   |   |   |
| Profit before income taxes plus fixed charges                                      |   | $                  | 334        |   |              | $      | 315 |   |   | $ | 1,009 |   |   | $ | 947 |   |
|                                                                               |   |               |       |   |              |   |   |   |   |   |   |   |   |   |   |   |
| Ratio of profit before income taxes plus  fixed charges to fixed charges |   |               |  1.58 |   |              |   |  1.38 |   |   |   |  1.61 |   |   |   |  1.35 |   |
|                                                                               |   |               |       |   |              |   |   |   |   |   |   |   |   |   |   |   |