Generally added up to $10-$12/hour for us in CT, so total bill all depended on how much we used it. Pre-school averaged out the same once you factored in all the add-ons. This was where having twins was really a major bite in the ass.
Of course, now they are out of that they have after school 'enrichment' programs, hobbies, sports, etc. so the bills just keep on coming.
The solution, as I see it, is for me to work harder.