All the data looks plausible other than a few very popular properties at the bottom. My guess would be that the scale only goes up to 99.x% and any values of 1

All the data looks plausible other than a few very popular properties at the bottom. My guess would be that the scale only goes up to 99.x% and any values of 100 are being shown as zero. Edit: ... and I was wrong. @blatherard has explained it.