The following is a map partitioning the United States into four regions of approximately equal numbers of qualifiers.
The most represented last name is a three way tie between Chen, Wu, and Zhang, each with 8 qualifiers.
The least represented first letter of last name is a two way tie between I and U, each with 0 qualifiers.
New York has a notable downward trend, from 22 in 2012 to 15 in 2013 to 12 in 2014.
North Carolina has a notable downward trend, from 9 in 2012 to 7 in 2013 to 3 in 2014.
Florida has a notable upward trend, from 5 in 2012 to 7 in 2013 to 11 in 2014.
As is usually the case, New Hampshire has the highest qualifier to population ratio, being home to Phillips Exeter Academy.