Reduces the constitutional debt limit over time from 9.0 percent to 8.0 percent by July 1, 2034. It is set at 8.5 percent starting July 1, 2014; 8.25 percent starting July 1, 2016, and 8.0 percent starting July 1, 2034. The percentage debt limit is applied to the average of general state revenues for the previous six fiscal years instead of the current three-year average. The definition of general state revenues includes property taxes deposited in the General Fund.