How much can you earn from airdrops?

Could you please elaborate on the earning potential of airdrops? I'm quite curious about the amount one could potentially acquire through this method. Could you provide an estimate or a range of potential earnings? Are there any factors that significantly impact the amount one could earn? Also, how does the value of airdropped tokens or coins fluctuate? I'd like to understand better how these airdrops work and what kind of returns they typically offer. Thank you for your time and insight into this matter.