How much can I earn from airdrops?

Could you please elaborate on the potential earnings from airdrops? I'm curious to know how much one can realistically expect to gain from these events. Is there a general range or average amount that participants typically receive? Are there any factors that significantly influence the amount earned, such as the popularity of the cryptocurrency or the size of the airdrop? Additionally, are there any risks or caveats to be aware of when participating in airdrops? I'd appreciate any insights you can provide on this topic.