How about this?

Take an average number of days per week over several weeks and round up or down to a whole number.
_______

I don't ride much if at all in the winter, but I'm not considering that in my average.

One of my days (Saturday) is typically 100 miles, so this isn't exactly an in-depth picture meant to compare how much riding we're doing in a week, just a rough picture of the frequency. When I was just commuting while still rehabbing, I was riding the same number of days roughly, but only riding about 25 miles per week. My commute is only 2.4 miles one way.

My answer would have been 5 days both then and now, but I'm doing roughly 7 times more miles per week now.