Попробуем гуглить пососедству :)
45 states 17,900 results
46 states 17,800 results
47 states 15,800 results
48 states 80,700 results
49 states 24,900 results
50 states 321,000 results
51 states 5,540 results
52 states 3,600 results
53 states 2,910 results
54 states 3,180 results
55 states 3,630 results
56 states 7,310 results
57 states 2,330 results

....

65 states 2,310 results

Не вижу ничего особенного в точке 52 :) А вот 56 - и правда выделяется!