Indeed I agree with Trev and have the same reservations.
Whilst it is good to have a few pinches of salt must be taken.
Reported fish coudl have been reported more or less in teh good old days.
Catches may have only been reported by those at a meeting, now you can be anywhere in the world 24/7 and report.
Are we using more rods, have more members, more boats, better treminal tackle?
Better fish \ mark \ location equipment?
Faster boats that can make more marks in a day?
TBH I am not sure we can use this data to a great extent, expect to see what the biggest fish were and how many - as Fishermen never change, it's all about reporting the big one!!!
Rob