Mr. Aubrey McCarthy:

I recently completed a masters degree and as part of that I focused on Tiglin and how the longevity of the programme would be beneficial or disadvantageous for treatment. I should know the percentages off by heart, but I do not. The longevity of the programme seems to be a positive factor. The longer a person engaged with the programme, the more successful the outcome. We found it was important to have a long programme. I do not recall the first part of the Chairman's question.