Betfair Liquidity

[Tjt]

Hi!

Does anyone know where I can find the historical data of liquidity on betfair markets over the years?

i.e.: Has there been an increase in liquidity on the horse racing markets since 2014?
-Has there been an increase in liquidity or a decrease?

It would be nice to find some data on this topic across all sports.

Hope you can help!

Many Thanks

[Anbell]

some data here

www.betfairpromo.com/betfairsp/prices/

[Tjt]

Great Thanks!

[Euler]

Volume is not liquidity