insert
(9) In this section:
"gross written premiums", in relation to an approved insurer, means the total amount of premiums, less GST, for all insurance policies written by the insurer for a policy period.
"notional gross written premium", in relation to a self-insurer, means the total amount of premium that would have been payable, less GST, if the self-insurer had obtained a compulsory insurance policy for a policy period.
"policy period" means the period beginning on 1 July in a year and ending on 30 June in the following year.