Thats not really a fair comparison. Youve compared an entire industry to one entity within an industry. Id be interested to see what the numbers would be if you shutdown all commercial UK airports for a day. Still smaller I'd imagine, but at least comparable
If we're going to be pedantic about fair comparisons, then really you would need to, for example:
Remove airport duty-free sales figures since that has a negligible effect on the UK economy, but does pad up their bottom line.
Remove leisure passenger derived numbers. Because "passenger tourism contributes to the UK economy" type data are very much finger in the air subjective estimates prone to bias and massaging. For example, common scenario is relatives coming to stay. They stay at your house, you feed them at your house, their net contribution to the UK economy is effectively naff all apart from maybe a couple of museum and transport tickets.
