Concerning the hours pubs are expected to put in every months the "national" average is usually a guide and everyone strives to "do" this amount. But since it is "national and not "international" is seems quite a coincidence that everyones country has this 10 hours average.
Also since the pioneer and aux pioneer hours went down, surely the national average must have of too. I cant remember any articles saying the average had now gone down to 6 ...............hooray
Everyone knows you can fiddle with numbers but surely, year in and year out this figure never changes