Wabbity
Those figures are based on people being allowed to have those breaks. As I and many others have said, there are very very few places that would allow that. I suppose people who manage their own workload could do it but then they would have to make the time up to finish the job so they are not actually stealing time.
I read somewhere that nicotine has antidepressant qualities which is why the first thing many ex smokers do when hit with bad times or depression is to start smoking again. Makes sense as those are the times when I have started again after being off them for several years.