The dataset is compiled based on the monthly reports submitted by Russian credit institutions using Form 0409303 (since 2019) and Form 0409302 (prior to 2019), which include data on loans granted to resident legal entities and individual entrepreneurs. A distinctive feature is the grouping by economic activity (All-Russian Classifier of Economic Activities, OKVED) and administrative-territorial units (All-Russian Classifier of Administrative-Territorial Divisions, OKATO), taking into account the location of borrowers. The indicator reflects the volume of ruble-denominated lending broken down by region of the Russian Federation, excluding data on the Donetsk and Luhansk People’s Republics, as well as the Zaporizhzhia and Kherson regions. The methodology involves determining the primary business activity of enterprises based on a comprehensive analysis of data from Rosstat’s registries, the Unified State Register of Legal Entities (EGRUL)/Unified State Register of Individual Entrepreneurs (EGRIP), and the Register of Small and Medium-Sized Enterprises (SMEs). The information is updated monthly and published by the Bank of Russia in the “Statistics” section and in the official publication “Statistical Bulletin of the Bank of Russia.”