Objective-C
#1 1 581
#2 1 443
#3 471
#4 142
#5 61
#6 24
#7 12
#8 10
#9 7
#10 6
#11 4
#12 4
#13 2
#14 2
#15 1
#16 1
#17 1
#18 1
#19 1
#20 1
#21 1