What is the average weigh capacity on a trampoline?

at my friends house she has a 12 foot trampoline ( i believe) and there was me around 190 pounds my other friend around 190 her which i think about 110 and then my other friend around 180 and the trampoline was fine we were all jumping really high and what not so when a trampoline says like 250 max is that per person or like the whole weight