i just turned 16 and im a little late in puberty but i was wondering whats the average amount of press ups a 15/16 year old should be able to do?

when i started building up muscle i couldnt even do 5 but now i average out doing 20. also is it better to do a streak of 20 press ups of do lots of 10 press ups with breaks in between???

please answer. o and im a male.