How big is the Wormhole airdrop?

Could you please elaborate on the size of the Wormhole airdrop? I'm quite curious to know how extensive it is. Is it a significant amount that could potentially have a meaningful impact on the recipients? Or is it relatively small, more of a symbolic gesture? Also, could you provide any insights into how the distribution of this airdrop was determined? Was it based on certain criteria, such as holding a certain amount of a particular token or participating in a specific event? I'm interested in understanding the mechanics behind it. Thank you for your time and assistance in clarifying this matter.