19.49222, 18.38086, 18.0358, 16.57819, 15.71255, 14.79059, 13.64154
13.09409, 12.18347, 11.33447, 10.32184, 9.544922, 8.813385, 8.181152
finding index of an item closest to the value in a list that's not entirely sorted