example is given in appendix VI to show how the Group used submitted price data and expenditure weights for its calculation of price indexes for military expenditures on different levels of aggregation. In general, the Group hoped to use the,same body of submitted price data for the purpose of constructing both price indexes and PPPS. In the case of PPPs, however, the additional requirement for international comparability of the items and the fact that ready-made national price indexes could be of no help meant that less of the available data was usable. A few supplementary comments on the data from each participating State may also help the reader better to understand and evaluate the results obtained. 100. Australia submitted data for more than one year only for personnel and a small number of procurement items. As salary data were substituted for missing operating cost data and operating costs represent a huge part of Australian total military expenditures, the reported high salary increases of about 20 and 10 per cent respectively for the two years of 1981 and 1982 have had an important impact on the military price index as constructed by the Group. This index is therefore likely to show a somewhat exaggerated rate of growth which could most probably have been adjusted, if the Group had received more detailed and accurate data in response to its repeated requests. Concerning the category of construction, the Group has substituted an index for residential construction in Australia as published by OECD. 101. Austria submitted detailed price information for all cost categories except for research and development as no expenditure data have been reported for this category. Concerning the category of construction, the Austrian contact submitted a specific price index which was used by the Group. 102. Finland submitted data as requested by the Group for items within the 
**Analysis**
The text appears to be discussing the construction of price indexes and purchasing power parities (PPPs) for military expenditures, which suggests a strong connection to economic development and international trade. The text also mentions specific countries and their submitted data, indicating a focus on international cooperation and comparison.

**Category**
Economic development, International trade