The document discusses the Human Development Index methodology and compares Russia and China's HDI scores and component metrics. The HDI is calculated based on dimensions of life expectancy, education, and income. It shows that from 1980 to 2011, China's HDI score increased from low to medium human development, while Russia fell from very high to high. Currently, Russia has a higher overall HDI score than China but lags in life expectancy and GNI per capita.