0-9 fill up to the 1 number of customers (noc)
10-19 fill up to 4 noc
20-29 fill up to 5 noc
30-39 fill up to 2 noc
40-49 fill up to 2 noc
50-59 fill up to 1 noc
60-69 fill up to 2 noc
70-79 non
this is a lil off sorry im in a rush but its like 95% accurate :)
