I asked this question at my club of several PPLs who own their own aircraft, most said they, and those they know, do around 50hrs per year and considered that 'good going' when considering weather etc. This was a mix of people who fly aerobatics, tour or just bimble about on nice days.
It really is just a finance/time what you want out of thing though? For sure some clock up more hours, others just barely keep current. When it came to my last SEP renewal I had no choice but to do it by test, I had far less than the required 12hrs that year.
