How many one night stands has your wife had in her past

Most of us will never know the answer to this question, and I'm good with it as every now and then she has a new story for me. My wife has always been very clear about enjoying one-offs when it was to her advantage to so do. Especially at parties, but sometimes at company events as well. There's also been a few small group scenarios at parties and she wasn't sure how many men were in her while the fun was taking place. Nor did she care, just keep the line moving.
 
I dont count and she doesnt count either, but in general when she is really down or very stressed. she would find a random guy. Its not a big number but i would say in the past 5 years it might be around 20.