XQuery
#1 30
#2 19
#3 16
#4 13
#5 11
#6 6
#7 6
#8 6
#9 4
#10 2
#11 1
#12 1
#13 1
#14 1
#15 1
#16 1
#17 1
#18 1
#19 1
#20 1
#21 1