How many starters caught since event started?

Zero, because I've been sick. FML.

Many (at least 60) - I didn't count. Most of them were Bulbasaurs, which allowed me to evolve a second Venusaur. I even caught my first wild Charizard and my first wild Blastoise. Hope to find a wild Venusaur too before the event ends.

About 500 candy for Bulbasaur, 400 for Charmander, and about 200 for Squirtle

(Guess you can tell my catch priority from that!)

Of the evolved forms, caught 2 Charizards, 1 Venusaur and 2 Blastoise. Also had a Charizard run =(

Around 15 I guess, ~5 of each. Not playing a lot currently.

Where do you guys find so many starters? I have been playing quite much the last 3 days and I'm only having like 100 candy of Pokemon each.

Dunno, but I evolved 2 Charizards, a Squirtle and a Bulbasaur, that in like 5-6 hours of play over 3 days.
Fun event

This has been nothing like the Halloween event in my area. A generous estimate would be about 20%. The flee rate has been astronomical on the rather meager sightings, no matter what combinations I throw. Berries, curveballs, it doesn't seem to matter at all.
I hit poke stops about 40 to 60 times a day, it's just not happening here like other areas.

not a lot, ~10
Really disappointed. Driving through the city on the 1st, I saw a lot more starters and a few final evolutions on the radar. Since I had things to do and wasn't prepared to go on the hunt (it was cold), I went home thinking the event would last another 7 days.

I went out today and there were 3-4 time less starters and no evolved form. I'll try it again tomorrow to see if I was just unlucky or if I got f.....