Arbitron asked those questions before the current Voltaire-gate scandal. I just keep clicking on "no change". I can't afford a Voltaire or four anyway. I can't afford the annual Country Report either, which is issued in the year following the 88 diary sample.
I'm not too sure why, but they provided me with encoders/decoders for four of my stations several years ago. Our market area is unrated, no one has a PPM, and the only ratings come from a breakout of 88 diaries per year. I keep hoping that someone from Seattle with a PPM will come down here for a month or so in the Spring and Fall, so we can show up in the Seattle book.