How many spurts when you cum?

[Knickers4cum]

If I jerk off for about 30 minutes to an hour and work up a good goon-state, I can cum on my own face 2 to 3 times when lying on my back, with the next couple of spurts getting shorter until the last couple just ooze out the end of my cock. So about 7 to 8 in total. Used to be more, but I'm 51 now!