According to this income statement calculate the 1) Loss ratio 2)Expense ratio 3)combined ratio 4)Investment income ratio 5)Overall operation ratio. Explain the result meaning of each ratio.

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12,843,165 (1,744,393) Gross premiums Premiums ceded to reinsurers Net premiums Movement in unexpired risk reserve 11,098,772 (266,759) Net earned premiums Gross claims paid Reinsurance recoveries Movement in outstanding claims Net commission Other insurance income 10,832,013 (9,733,481) 1,803,912 324,486 (2,879,788) 8,227 Net underwriting result 355,369 Investment income Finance costs 1 Net investment income 1,152,385 (142,482) 1,009,903 Advisory fee income Rental income Other income 12,937 47,489 496 Total investment and other income 1,070,825 Share of profit from equity accounted investments 13,622 Total income 1,439,816 Operation and administrative expenses Depreciation and amortization (664,929) (82,858) Profit before income tax Income tax Profit after tax of the year 692,029 (21,114) 670,915 12,843,165 (1,744,393) Gross premiums Premiums ceded to reinsurers Net premiums Movement in unexpired risk reserve 11,098,772 (266,759) Net earned premiums Gross claims paid Reinsurance recoveries Movement in outstanding claims Net commission Other insurance income 10,832,013 (9,733,481) 1,803,912 324,486 (2,879,788) 8,227 Net underwriting result 355,369 Investment income Finance costs 1 Net investment income 1,152,385 (142,482) 1,009,903 Advisory fee income Rental income Other income 12,937 47,489 496 Total investment and other income 1,070,825 Share of profit from equity accounted investments 13,622 Total income 1,439,816 Operation and administrative expenses Depreciation and amortization (664,929) (82,858) Profit before income tax Income tax Profit after tax of the year 692,029 (21,114) 670,915