In contrast, while least developed countries and small island developing States are more likely to need to improve their physical infrastructure to primarily strengthen social infrastructure, landlocked developing countries need to join regional infrastructure networks as part of regional connectivity and integration, and thus improve the flow of goods and services across borders. For example, of the 400 million people living in the 36 CSN of the region, 133 million people still lack access to improved water sources in rural areas, 74 million people lack access to improved sanitation, 144 million people lack access to electricity, and 320 million people (out of 392 million people in 23 CSN) lack access to the Internet The CSN therefore need to improve the availability and quality of infrastructure. Thus, even though some countries may face greater development challenges than others, they may demonstrate better infrastructure performance than countries that are naturally more 'advantaged'.