Off topic: I love that you're using an "f" in the word demografic (standard spelling is demographic). I've been learning a lot about how all the weird spelling exceptions came into the English language and the fact that we still use "ph" to make an "f" sound is just super interesting to me. It's mostly present in words that came from Greek through Latin, which represents the sound of the Greek letter "phi" as "ph". Then, as far as I can understand, the spelling remained unchanged even after all those words began to be pronounced with our current "f" sound.