How Important are P0rn Pages in the Eyes of Google?

PageRank is Google's way of deciding a page's importance. PageRank matters because it is one of the factors that influence the determination of a page's ranking in the search result. I somehow got into thinking about how Google sees p0rn sites so I checked some of my, ah, favorite pages and here's the result. It is good to note that all of the sites I've checked are ranked, meaning they are important.