Mr. Conor O'Kelly:

I do not think that there is a magic figure. Investors look at all these metrics but anything that affects Government revenue particularly if we become more dependent or too dependent on one particular stream of revenue, as happened in the past, would set off alarm bells. Investors do look at a host of different metrics and I do not think that holding up any one of these or imposing a particular threshold is necessarily a good way to look at it.