“Loss payments” and “loss expense payments” as used with reference to liability insurance shall include all payments to claimants, payments for medical and surgical attendance, legal expense, salaries and expenses of investigators, adjusters and claims field men, rents, stationery, telegraph and telephone charges, postage, salaries and expenses of office employees, home office expenses and all other payments made on account of claims, whether such payments are allocated to specific claims or are unallocated.