Passage: In 1994, Sumet Phromphanhao, a member of the House of Representatives from Nong Khai Province, proposed that the province of Bueng Kan be established by consolidating the Bueng Kan, Seka, So Phisai, Bung Khla, Bueng Khong Long, Pak Khat, Phon Charoen, and Si Wilai Districts of Nong Khai Province as a new province. The new province, if created, would be 4,305 km2, with a population of about 390,000 inhabitants. At that time, the Ministry of Interior replied that creating a new province would load a heavy burden to the state budget and was contrary to the resolution of the Council of Ministers.The proposal to create Bueng Kan Province was tabled for about 20 years, until 2010 when the Ministry of Interior renewed the project and made a proposal to the Council of Ministers to have a "Bill Establishing Changwat Bueng Kan, BE..." (Thai: ร่างพระราชบัญญัติจัดตั้งจังหวัดบึงกาฬ พ.ศ....) considered. In a poll at the time, 99 percent of the inhabitants of Nong Khai Province supported the proposal. On 3 August 2010, the Council of Ministers resolved to present the bill to the National Assembly, citing that the proposal met its criteria for approval.On 7 February 2011, the National Assembly approved the bill. Prime Minister Abhisit Vejjajiva presented it to King Bhumibol Adulyadej for royal assent. Bhumibol Adulyadej signed the bill on 11 March 2011, enacting it as the "Act Establishing Changwat Bueng Kan, BE 2554 (2011)" (Thai: พระราชบัญญัติตั้งจังหวัดบึงกาฬ พ.ศ. 2554). The act was published in the Government Gazette on 22 March 2011 and came into force the next day.

Question: What percentage of inhabitants  of Nong Khai supported the proposal based on a poll at the time?
99 percent