Yes, as an industry we've been looking at the short- and mid-term targets. The short-term target, starting around 2010, would be 5%. It would run to 10% by 2020, and then drop dramatically, because that's when our industry capital stock turnover would really begin to take place. There would be a dramatic drop then to probably around 20% or 25%. Then it would decline over the remaining period until 2050 to between 50% and 65%.
On February 27th, 2007. See this statement in context.