You probably know from your payslips how much you, as a doctor working in Bristol, pays towards your NHS Pension. But this is only part of the overall contribution.
Your employer also contributes - and from April 2015 it will be 14.3% of your pensionable salary.
Your employer's contribution depends in part on the Scheme Valuation - broadly how well funded the scheme is at any one time. However it is worth knowing, when considering your NHS Pension Benefits - just how much has to go into the Scheme in order for it to eventually pay out your benefits.