Early Backers & Backers allocations are locked up ranging from 6 months to 2 years, but in this case we are assumming that early backers are unlocked after 6 months and backers after 12 months.
Public GRT Sale is vague, but it is assumed that it is unlocked at TGE.
Graph Foundation allocation at start is 4.6% and the rest is assumed to be unlocked over 10 years
New Issuance increases the supply by 3% per year and modeled for 10 years, but this can be changed in the future.