That's my intention :) it's worth checking out https://www.scotblood.co.uk/ https://www.scotblood.co.uk/ - they have a nice "blood-bag" visualisation on there,

That's my intention :) it's worth checking out https://www.scotblood.co.uk/ https://www.scotblood.co.uk/ - they have a nice "blood-bag" visualisation on there, it's where I get my data!