Looks like you go to them about as regularly as I do although I think I've hit a new record with six (so far) this year (beating the five I did in 2015).
I.e. Not very often as I have a. More fun things to do and b. Don't like getting up earlier on Saturday than I do the rest of the week.
This year has had a spike as my parkrun obsessed parents visited, and also I can run again which makes me more tempted.