https://www.singstat.gov.sg/docs/default-source/default-document-library/publications/publications_and_papers/household_income_and_expenditure/hes1213.pdf In 2012/13, housing and related expenditure, food and food serving services and transport continued to account for the largest shares of household expenditure. Together, they accounted for 65 per cent of average monthly household expenditure, up from the 64 per cent in 2007/08 and the 61 per cent in 2002/03.

加上通胀率，自己所在的percentile对号入座，其实还是挺客观的，起码比把所有新加坡人吃饭支出平均到每个人头上准确点吧