I can see from my stats that many people are searching for statistics on church attendance in the UK and other places, but there does not seem to be much comprehensive data, probably because there are so many separately administered denominations with better things to do than count heads.
But even newspapers are looking for catchy headlines like: Church attendance falls 31.41% in 59 months etc. It seems that accurate statistics would be highly sought after.
Presumably, churches also measure total income, not just members. But perhaps there is another way they should measure attendance instead of headcount. With the increase in obesity, measuring attendance by weight could lead to more favourable statistics. See November Lark News!