Hmm, tough one for me, I would guess around 8-10K from size 10-8/0. Then my fly hooks maybe another 8-10K sizes 1/0 down to size 24. Have no clue how many jig hooks but should be close to 1,500 now with all I have collected from trades, buying them and other stuff. Then all the other bait holders and what not, might be close to 25K. And use about 1,000-1,500 a year just between me and my kids.
Could be more but there is no way I am counting them anytime soon. :p
I love taking my kids fishing, now if I could just manage to fish at the same time.