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5.1. The Price Index of Materials Used in House Building, Six State Capital Cities, (Cat. No. 6408.0) was first published in September 1970 on a reference base of 1966-67 =100.0. The weighting pattern was derived from estimated materials usage in 1968-69. Monthly index numbers were compiled for this first series for the period July 1966 to September 1986. A description of the first series, including its composition and weighting pattern, is given in the September 1970 issue of the publication and in Labour Report No 55, 1970.
5.4. The index measures changes in prices of selected materials used in the construction of houses in each capital city Statistical Division. It is used by both the government and private sectors primarily for adjusting business contracts. It is used also for economic analysis.
5.8. The materials included in the index and the relative weights assigned to them are based on the estimated average usage of building materials used in the construction of houses in the 3 years ending June 1993. The estimates are based on material usage in houses selected to be representative of the main types (ie. according to type of materials used and size) of houses constructed in the six State capital cities. In deriving these estimates the ABS employed the services of a firm of quantity surveyors.
5.13. The same data sources for prices are used in this index as for the Materials Used in Building Other than House Building index. See paragraphs 4.19 to 4.23.
5.14. The same data sources for weights are used in this index as for the Materials Used in Building Other than House Building index, except that houses are selected rather than other buildings. See paragraphs 4.24 to 4.26.
Special pricing considerations
5.15. The main problem encountered in compiling the index is to ensure actual transactions prices are obtained. See the discussion in paragraph 4.28 as it relates to the Materials Used in House Building index as well as the Materials Used in Building Other than House Building index.