here and here Obviously", they didn't word it in that way, but that's the gist of it.
The murder rate has dropped
The rate of teenage pregnancies has dropped
The crime rate has dropped
Alcoholism is dropping
Drug use is dropping
Fewer people smoke
There is a decrease in domestic violence ("Her partner will probably not marry her and he is less likely to stick with her than were men in previous generations, but he is also a lot less likely to beat her.")
So, David Cameron. Not that hot on sticking to facts, is he?