Figure 2.1 shows R&D spending as a share of GDP for various country groups in 2015. Only a minor share of R&D resources is coming from the private sector. In many high-income countries, businesses are the main contributors towards R&D, however, with some variations across countries. In Japan, for example, nearly 80% of all R&D funding stem from businesses, while the government and R&D funding from abroad still represent the majority in countries in Eastern Europe.