Imputing Away Convergence
The data includes real GDP, population and shares of imputation-heavy industries in GDP, collected from United Nations and World Bank Databases. They can be used to construct Narrow-Measured Value-Added (NMVA) following Basu and Foley (2013), which can be compared to GDP in assessing economic convergence rates of countries (both total and per capita).
Steps to reproduce
NMVA can be derived from GDP and the share of imputed industries in GDP (ISIC cateogires J-P). Denote the latter by O (for other industries), then NMVA = GDP * (100-O)/100. Per capita NMVA is NMVA/population.