The mood of Hongkongers born in mainland China has consistently been better than those born in the city, a survey has found. The Hong Kong Public Opinion Research Institute (PORI) released the results of its latest public sentiment index on Tuesday. The poll, which has been conducted since 1992, aims to quantify Hongkongers’ sentiments in relation to livelihood issues, their satisfaction with the government and other topics. Figures from the institute showed that, in the first half of the year, the public sentiment of those born in the city stood at 100.6, while the index stood at 130.5 for th…