UK. between 150 and 850 pounds but It depends on your individual circumstances i.e. where it's kept, how much use it gets, age of it, make and model, value of it, where you live, your gender, your...
When it's close to " nothing " I'd say less than 10%. In a survey taken by USA Today several years ago, the most popular answers for this very question was " about 3 % " and " very little ". 10 % is...