90. In view of the preceding paragraphs, the Panel has arrived at the conclusion that its quantitative analysis gives no reason to suggest any substantial changes ' in the structure of the matrix. Some limited modifications may, however, seem to be indicated in the light of this analysis. The reporting instrument, including the matrix as revised and recommended by the Panel , is presented in section II D below. 91. The matrix is constructed in such a way as to give smple opportunities for various analytical calculations and comparisons which would help in assessing information needed for future disarmament negotiations. In the following paragraphs, some examples are given of the types of calculations that are possible. 92. The matrix allows,for the distribution of military expenditures between different cost categories such as operating costs, procurement and construction as well as research and development. It is also possible to simultaneously distribute the expenditures according to different forte groups both in absolute figures and in percentages, which are shown in tables 4 to 6 in which the military expenditures of the participating countries have been aggregated. / . . . Tablc 4. Dietribution of military expenditures accordinn to cost i ,! categories and force groups $ (Total expenditures in millions of US dollars) ,Militaky assistaoce Central support UN Stra- Other adminiatration Para- H0me Peace tegic Lana Naval Air combat , and command mílitary Civil terri- keep- Total Resource coets forces foroes forces forces forces Support Command forces defence tory Abroad ing (l-12) (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) 1. Operating costs 1 333 36 128 23 555 25 579 4 109 11 047 12 621 4 987 339 6 80 77 122 191 2. Procurement and 
**Analysis**
The text appears to be discussing the structure and analysis of military expenditures, with a focus on categorizing and comparing data between different countries. The language used is technical and formal, suggesting a context of international relations or diplomacy. The mention of "future disarmament negotiations" and the presentation of data in tables also suggests a connection to international politics.

**Category**
Industry, International trade