| Period | Uptime |
| 2012 Yearly Total | 100.000% |
| 2012 Feb | 100.000% |
| 2012 Jan | 100.000% |
| 2011 Yearly Total | 99.690% |
| 2011 Dec | 99.766% |
| 2010 Yearly Total | 99.704% |
| 2009 Yearly Total | 99.993% |
| 2008 Yearly Total | 100.000% |
| 2007 Yearly Total | 100.000% |
| 2006 Yearly Total | 100.000% |
|