Objective-C
#1 703
#2 82
#3 29
#4 28
#5 22
#6 17
#7 17
#8 13
#9 13
#10 5
#11 4
#12 3
#13 3
#14 1
#15 1
#16 1
#17 1
#18 1
#19 1
#20 1