Past estimates on the exact number of Chinese Indonesians relied on the 1930 Dutch East Indies census, which collected direct information on ethnicity. This census reported 1.23 million self-identified ethnic Chinese living in the colony, representing 2.03 percent of the total population, and was perceived to be an accurate account of the group's population. Ethnic information would not be collected again until the 2000 census and so was deduced from other census data, such as language spoken and religious affiliation, during the intermediate years. In an early survey of the Chinese Indonesian minority, anthropologist G. William Skinner estimated that between 2.3 million (2.4 percent) and 2.6 million (2.7 percent) lived in Indonesia in 1961. Former foreign minister Adam Malik provided a figure of 5 million in a report published in the "Harian Indonesia" daily in 1973. Many media and academic sources subsequently estimated between 4 and 5 percent of the total population as ethnic Chinese regardless of the year. Estimates during the 2000s have placed the figure between 6 and 7 million, and the Overseas Compatriot Affairs Commission of the Republic of China estimated a population as high as 7.67 million in 2006.