The post has no methods section. So we have no clue what their data was, how they gathered it, how representative it was... nothing. I didn't find this particul

The post has no methods section. So we have no clue what their data was, how they gathered it, how representative it was... nothing. I didn't find this particularly useful. Surely there is a group out there who's done a high quality (and ongoing) survey with reliable data on this.