C#
#1 171
#2 34
#3 18
#4 14
#5 9
#6 5
#7 5
#8 4
#9 3
#10 2
#11 2
#12 1
#13 1
#14 1
#15 1
#16 1
#17 1
#18 1
#19 1
#20 1