In the row axis (Height): Put those number in order 61.5 ; 66.5 ; 71.5 ; 76.5 ; 82.5
In the collum axis (Frequency):
From 61.5 to 66.5: Frequency is 5
From 66.5 to 71.5: Frequency is 3
From 71.5 to 76.5: Frequency is 6
From 76.5 to 82.5: Frequency is 2
