take-up
noun [ U or S ]
(also takeup) ukus COMMERCE
the degree to which people start to buy or use a product or service that has become available:
It is hard to know what the take-up of the new flat-rate service will be.
It's been a raging success, with more than 90% take-up.
The group's recent rights issue is suffering from a low take-up rate.
high/low/poor take-up Part of the reason for the poor take-up may be that people will have to disclose very personal details.