This answer has not been rated.

That's definitely the one!  Thanks for finding this book, Nellie_bly

Thanks for the research - not quite what I was looking for - but
helpful none the less.

Excellent.  Thanks.  I couldn't get through with the link you
supplied, but I was able to find it elsewhere.

Thankyou Nellie, very well done indeed.  You have saved me some work,
andf time as well. I will now slowly go through a lot of what you have
forwarded especially in regards the links provided. At this point I
have not gone through the links in any detail so are allotting you 5
stars on the strength of what I have quickly gleaned so far, which
looks terrific as I said.
 

 Thanks again and great research work,

 John From Melbourne

This answer has not been rated.

Thanks!!

Excellent!  I'm off to Blockbuster now.  Thx!

This answer has not been rated.

This is the standard info on Sleep Apnea prevalence.  Total CPAP
devices sold is a little more tricky to find.

Took ages. Got no more than me. & Jeeves (ask.co.uk)
Older Law is available from House of Lords Record Office - by mail or fax.
Surely lawyers have some easy web access to Laws thro a professional site?

Thanks for trying.

Chris