How much do boat owners contribute to British Waterways' property income?

I don't know the answer to this question though I have wondered from some time. When I had my NABO hat on in the last few days the question of how much boaters already contribute financially to the waterways was in my mind. So now I have asked.

What I do notice is that when asked questions about how much boaters contribute financially to BW, the figures referred to are usually based only on the direct income that boaters contribute to BW as per the Annual Report and accounts.

• Boat licence income - 17.4M
• BW moorings - 6.3 M
• BWML total income - 6.6M

(Source Page 31 in BW 2010/11 Accounts)

So direct income from boaters last year was £30.3 million or 17.2% of BW's gross income. These are direct payments from boaters but what about the indirect payments that boaters make to those waterside businesses that in turn BW get a cut from?

It will be interesting to see the numbers and understand better how much of BW's commercial income from property is in fact derived indirectly from boaters pockets.

(Old rant about where my mooring fees do and don't go) 

Addendum - 22 January 2012 - As anyone who has used the link to my FOI on this will see, BW has answered and say that an additional £4.7M of their annual income comes from businesses whose primary customers are boaters. Add this to the the figures above and we have confirmation that Boaters provide at least 20% of BW's annual income worth around £35 million pa at last year's rates.