It varies from year to year depending on where the growth is happening. Some programs are more revenue dependent than others. I don't want to sound technical, but as you know, we provide optional services. These are 100% revenue dependent. For instance, translation services, real property, and specialized services are on an optional basis, so if there is growth in those programs, the revenues grow accordingly. Other programs are partially revenue dependent, but over the last four or five years, I would say, it has remained fairly steady at around 55%.
On November 22nd, 2011. See this statement in context.