BEIJING: China’s total expenditure on research and development (R&D) exceeded 3 trillion yuan (about 418.2 billion U.S. dollars) in 2022, up 10.1 percent year on year, the National Bureau of Statistics said Monday. China’s R&D spending jumped 7.7 percent last year at constant prices, higher than the 7-percent R&D annual growth target set for the 14th Five-Year Plan period (2021-2025), …