0. I have a max bench of 155 though. Good for a runner and average elsewhere.
Now: I really don't know. Probably 3-6, but I haven't been in a gym in about 10 months.
A year ago: At least 10
Shortly before that: I think my PR was 14 reps
Zero. I bench about once each week. I usually do 135 lbs for 4 sets of 4 reps or 3 sets of 6 reps.