Official science and technology statistics are fifty years old. Among industrial countries, the forerunners were the United States, Canada and Great Britain. This paper traces the development and the construction of S&T statistics in these three countries, and their subsequent standardization, mainly by the OECD, in the 1960s. It shows how military and science policy needs drove the construction of statistics, until economic considerations came to dominate their development. It also discusses how statistics interacted with politics by way of studies that documented gaps between OECD Member countries and between the OECD and the USSR. [ABSTRACT FROM AUTHOR]