Urgent! How many years is compulsory education in Hong Kong?

Children born in Hong Kong are permanent residents of Hong Kong.

Public hospitals are not completely free of charge, and the outpatient and emergency services 100 yuan, general outpatient or inpatient 68 yuan/day, including medical expenses. There are many people waiting in line in public hospitals, and it is very slow to see a doctor. A friend of mine waited for half a year to have a gastroscope.

Hong Kong began to implement education reform this year. 3; 4, so the increase of compulsory education to 12 means graduation from high school.