Tanzania has made some progress towards reducing extreme hunger and malnutrition. The Global Hunger Index ranked the situation as "alarming" with a score of 42 in the year 2000; since then the GHI has declined to 29.5. Children in rural areas suffer substantially higher rates of malnutrition and chronic hunger, although urban-rural disparities have narrowed as regards both stunting and underweight. Low rural sector productivity arises mainly from inadequate infrastructure investment; limited access to farm inputs, extension services and credit; limited technology as well as trade and marketing support; and heavy dependence on rain-fed agriculture and natural resources.