The NGM token has an initial supply of 100M tokens. The supply increases with 10% annual inflation that is distributed as staking rewards.
The circulating supply can be seen in real time on https://e-money.net/ calculated as:
Circulating Supply = Total Supply - Staked Tokens - Vesting Tokens
Staked Tokens are locked for a minimum of 21 days. Vesting Tokens are locked for up to 3 years.
The circulating supply will increase as vesting tokens are unlocked. It will also change as tokens are staked or unstaked.
A large portion of the initial supply is locked in vesting accounts for up to 3 years.