There is also the issue of population growth. The population of Russia has been declining rapidly in the 1990s and only recently did the Russian government predict the population to stabilize and grow in 2020. Brazil's and China's populations will begin to decline in several decades, with their demographic windows closing in several decades as well. This may have implications for those countries' future, for there might be a decrease in the overall labor force and a negative change in the proportion of workers to retirees.