I'll offer a few insights, and also offer my colleague an opportunity to respond.
One of the factors that may be at play in the rise in the first part of that graphic that you're seeing does possibly have to do with the implementation of new legislation. Often after the implementation of new legislation there is a period of time when you might see this kind of trend occurring.
With respect to the post-bump decline, this decline in sexual assault rates is also consistent with a decline that we've seen throughout the entire 1990s in overall crime and in violent crime. This drop and then the stabilization since 1999 is a trend that we're seeing in other violent crimes as well.