| Period | Uptime | Downtime | Outage |
| 2012 Yearly Total | 99.791% | 01hr 51min | 3.800 |
| 2012 Feb | 99.859% | 12min | 0.800 |
| 2012 Jan | 99.778% | 01hr 39min | 3.000 |
| 2011 Yearly Total | 99.868% | 11hr 32min | 31.400 |
| 2011 Dec | 99.780% | 01hr 38min | 3.000 |
| 2010 Yearly Total | 99.900% | 08hr 47min | 19.000 |
| 2009 Yearly Total | 99.786% | 03hr 23min | 4.400 |
| 2008 Yearly Total | 99.973% | 02hr 21min | 7.333 |
| 2007 Yearly Total | 99.982% | 01hr 36min | 11.333 |
| 2006 Yearly Total | 99.721% | 1day 00hr 21min | 11.333 |
| 2005 Yearly Total | 99.887% | 07hr 12min | 6.500 |
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