The 1st digit is divided into 7 parts

Divide the 1st digit of the lottery numbers (1-30) into 7 parts:

No.1 range: 1 - 5

No.2 range: 6 - 10

No.3 range: 11 - 14

No.4 range: 15 - 18

No.5 range: 19 - 22

No.6 range: 23 - 26

No.7 range: 27 - 30