China is a sovereign state located in East Asia. It is the world's most populous country, with a population of over 1.35 billion. On 1 January 1912, the Republic of China was established, heralding the end of Imperial China. Since 2000, the Internet has also emerged as an important communications medium. The number of newspapers in mainland China has increased from 42—virtually all Communist Party papers—in 1968 to 382 in 1980 and more than 2,200 today. In 2006, China was the largest market for daily newspapers, with 96.6m copies sold daily, followed by India with 78.7m; Japan with 69.7m; the US with 53.3m; and Germany with 21.5m. China newspaper advertisement revenues increased by 128% over five years i.e. 2001–2006.