150 AUSTRALIAN BALANCE OF INTERNATIONAL necessary to construct a freight index covering the whole period; and, by making allowance for the variations in the price level, to estimate the freight bill for each year of the period. The pro- portion of exports for which freight was paid by Australians has been estimated at 25 per cent. of recorded value. (0) Insurance. Although there are differences in the rates quoted by brokers for the different kinds of commodities con- signed to Australian ports, the great bulk of cargoes falls within Tasre XXX Insurance on Imports, and Freight on Exports 1901 1902 1903 1904 1905 1906 1907 1908 1909 i910 11 1912 . 1913 Year. Imports at Insured Value, £m. 44-362 12-524 39-529 38:699 10-090 16-673 58:400 52-062 33-498 62-739 70-012 31-696 33208 Insurance Charge. £m. 0-166 0-159 0-148 0-145 0-150 0.175 0-219 0-195 0-201 0-235 0-262 0-306 0-312 Exports, 25 per cent. of Declared Value. £m. L resghi Index per cent, of Cargo Value. 124 46 11-0 4.3 12-1 38 144 3:3 42 3-9 74 4-1 '82 D0] 16-1 42 16°3 4.3 18:6 4.3 19-9 , 4-6 198 | 48 19-6 5+) Freight Charge. £m. 0570 0-469 0-460 0-475 0-550 0-713 0-786 0-676 0-701 0-800 0-915 0-950 0-980 a fairly narrow range of quotation. The two methods of esti- mating the average rate of freight upon the sample cargo men- tioned in the last section, and of collecting the impressions of a number of brokers constantly handling Australian cargoes at Lloyd’s were employed. The estimate of average insurance upon which the figures in the accompanying table are based was fixed in this way at three-eighths of 1 per cent. The method followed at Lloyd’s in computing the value of cargoes for insurance is to add 10 per cent. to the invoice value, add the freight which is payable in advance, and to quote the rate upon that total. (¢) Tourist Expenditures. The calculation of expenditure by tourists moving to and from Australia is necessarily very in- exact. The records of shipping companies engaged in carrying