Guilford County Real Estate Revaluations: What are the chances, and why did we get a tax decrease after a projected big shortfall until revals?

What are the chances of 420 Guilford County homes worth more than $1,000,000
rising an average of $42,541 each
between 2004 and 2012?

What are the chances of 420 Guilford County homes worth more than $1,000,000
rising about 35 times as much as an average Guilford County home
between 2004 and 2012?

What are the chances of the values of 420 Guilford County homes
worth more than $1,000,000
rising by a total of $17,867,405 between 2004 and 2012?

http://www.uncg.edu/bae/cber/tbi/apr12/index.htm