How many JUP airdrops are there?

Could you please clarify for me, how many JUP airdrops are currently available? I'm quite interested in understanding the distribution and quantity of these tokens. Are they limited in number, or is there a specific criteria that determines eligibility for receiving them? Additionally, is there a set time frame during which these airdrops will be distributed? It would be helpful if you could provide more insight into this matter. Thank you for your assistance in clarifying this question for me.