Here’s the data, a massive dip mid week on Wednesday inexplicably, and I’m fairly sure Orange Wednesdays isn’t a thing any more 
…
2016:
2017:
Thats great when there is someone to host, but it’s 2 days to go to the next open evening and no one is signed up still…
https://discourse.southlondonmakerspace.org/t/open-evening-rota/106