|CLICK ON THE IMAGE TO ZOOM IN AND READ!|
I'm not going to spoon-feed you the percentage part, just because I am always skeptical when I see statistics whose related studies I can't check and validate.
See for my PhD I'm also doing a sociological research, so I know all about percentage, statistics and stuff.
However, many of my British and Irish followers told me this stuff is great, so I wanted to share the news.
Let me know what you think ;)
to purchase: www.blissworld.co.uk (or .com if you're not in the UE)