Based on a comparison of 177 countries in 2016, Slovakia ranked the highest in duration of secondary education with 9.00 years followed by Germany and Lithuania. On the other end of the scale was Philippines with 4.00 years, Singapore with 4.00 years and Ireland with 5.00 years.
Average duration of secondary education reached 6.00 years in 2016 in the World according to World Bank. This is 0 % the same as in the previous year and 0.000 % the same as 10 years ago.
Historically, average duration of secondary education reached an all time high of 6.00 years in 2016 and an all time low of 6.00 years in 1970. The average annual growth amounted to 0.000 % since 1970.
Data for more countries are available at Duration of Secondary Education (years) indicator page.