difficult to answer as it depends on so many factors,
how long were you in the scheme? (how much company contriubted)
did you take the salary exchange?
did you additionally contribute?
what was the compound interest growth?
As I understand it it's a money purchase scheme which allows the purchase of an annuity with some or all of the final amount, same as 95% of employers out there.
There are pension calculators out there into which you can enter figures and it gives you an ESTIMATED figure.