I was doing to say that surely it's a larger percentage, especially including all the commercial and industrial AC units running non-stop. Then I remembered th

I was doing to say that surely it's a larger percentage, especially including all the commercial and industrial AC units running non-stop. Then I remembered that my dad didn't have indoor plumbing in his house for most of his childhood, and that 200 years is a much longer time than my first gut instinct.