I appreciate there are lies, dammed lies and statistics and we only have to look at how politicians bend statistics to tell the great public things that are utterly plausible and accepted as true on face value.
The term was popularised in United States by Mark Twain (among others), who attributed it to the British Prime Minister Benjamin Disraeli: “There are three kinds of lies: lies, damned lies, and statistics.” However, the phrase is not found in any of Disraeli’s works and the earliest known appearances were years after his death. Several other people have been listed as originators of the quote, and it is often erroneously attributed to Twain himself.
https://en.wikipedia.org/wiki/Lies,_damned_lies,_and_statistics Accessed 26/03/2016
That is until the facts are dissected by people who know about this type of deception. Once the facts are understood in context of their source rarely do they represent their original claim.
Facts are facts so depending on many factors you may considered enlighten or duped.
So, in summary many political outpourings such as in manifesto or worse policy are unadulterated propaganda that is skillfully dressed up and presented as facts. I draw no distinction between any political party with their spin doctors or a lobbying company with their money and in some cases charities and note the more totalitarian or tyrannical the organization or country the more they believe their own stories or want us to believe them.
Long gone are evidence based policies: just another example of irrationality in life. We seem to suffer from a rash of self-serving people whose aim is to increase their personal wealth by slight-of-hand and to the detriment of anyone and everyone who is there. Statistics are a wonderful tool and when aimed at a sheep mentality audience who aspire to ape the presenters they are believed with the same fervour as an athlete gasps for air when (s)he crosses the finish line. By the time (s)he gets their breath back the damage is done!
I mention the above as trying to find sources of data for mental health issues is difficult. I can find interpretation of facts but at present not facts. I have visited the ONS (uk) and mentioned then earlier and I am sure will do so in the future.
My research will now start in earnest: I will be looking into the main political parties last manifestos and policy statements; key charities statement of intent and other policy documents, the NHS and local commissioning agencies.
If you have any suggestions I would be pleased to have them.