Divided into 9 parts of average

The average is the sum of the digits of the lottery numbers, divided by the number of numbers(5).

Divide the average into 9 parts:

Part 1st: 3 - 6

Part 2nd: 7 - 9

Part 3rd: 10 - 12

Part 4th: 13 - 15

Part 5th: 16 - 18

Part 6th: 19 - 21

Part 7th: 22 - 24

Part 8th: 25 - 27

Part 9th: 28 - 30