At the moment, there's about 1 good tomato for every 15. Up until a few weeks ago, everything looked very healthy and every tomato on the vine could be picked, so it came on quite suddenly.
I also found three carrots. I'd left my carrots for dead because I thought they'd all been eaten, but three of them made it. Makes me wonder: if the animals don't want them, why do I? But, they tasted OK.