Tier 0 will be 0-10

 tier 1 will be 10-30

 tier 2 will be 30-80

Tier 3 will be 80-120

 Tier 4 will be 120-300

 tier 5 will be 300-600

Tier 6 will be 600-1000

Tier 7 will be 1000 and above