Noticeably, the percentage of nearsighted students ascended from 15.3% in 1994 to 23.6% in 2004, obesity moved from 0% in 1994 to 1.5% in 2004.
Riêng tỷ lệ cận thị 15,3% (1994) tăng 23,6% (2004), béo phì 0% (1994) tăng 1,5% (2004).