sentences:  Canada has seen a slow decline since the early 1970s, possibly influenced by statements from the AAP and the Canadian Pediatric Society issued in the 1970s saying that the procedure was not medically indicated.In Australia, the rate declined in the 1970s and 80s, but has been increasing slowly as of 2004.In the United Kingdom, rates are likely to have been 20–30% in the 1940s but declined at the end of that decade.