There is a beautiful graph on page 7 of your report. It is magnificent. The graph indicates that the West Block was in a critical state in 2007, and that by 2013, it will be in a state of total failure. What is the difference between “critical” and “total failure”? When a person is in a critical condition, that person is really not doing very well.
On February 3rd, 2011. See this statement in context.