Based on a comparison of 177 countries in 2021, Germany ranked the highest in duration of secondary education with 9.00 years followed by Slovakia and Italy. On the other end of the scale was Singapore with 4.00 years, Jamaica with 5.00 years and Ireland with 5.00 years.
Average duration of secondary education reached 6.00 years in 2021 in the World according to World Bank. This is 0 % the same as in the previous year.
Historically, average duration of secondary education reached an all time high of 6.00 years in 2021 and an all time low of 6.00 years in 1970.
Data for more countries are available at Duration of Secondary Education (years) indicator page.
| Duration of Secondary Education (years) | Unit | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
| Bosnia and Herzegovina | years | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | ||||||||||||||||
| Bulgaria | years | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | ||||||||||||||||
| Croatia | years | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | ||||||||||||||||
| Czechia | years | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | ||||||||||||||||
| Germany | years | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | ||||||||||||||||
| Hungary | years | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | ||||||||||||||||
| Italy | years | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | ||||||||||||||||
| Lithuania | years | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | ||||||||||||||||
| Oman | years | 6.00 | 6.00 | 6.00 | 8.00 | 8.00 | ||||||||||||||||
| Poland | years | 6.00 | 6.00 | 6.00 | 6.00 | 6.00 | ||||||||||||||||
| Romania | years | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | ||||||||||||||||
| Slovakia | years | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | ||||||||||||||||
| Turkey | years | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | ||||||||||||||||
| Turkmenistan | years | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | ||||||||||||||||
| United Arab Emirates | years | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 |
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