Based on a comparison of 157 countries in 2021, Sierra Leone ranked the highest in public spending on education as a share of government expenditure with 33.8% followed by Turkmenistan and Namibia. On the other end of the scale was Somalia with 4.36%, Nigeria with 5.14% and Papua New Guinea with 5.65%.
Data for more countries are available at Public Spending on Education (As % of Government Expenditure) indicator page.
| Public Spending on Education (As % of Government Expenditure) | Unit | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
| Belize | % | ... | ... | ... | ... | ... | ... | 21.6% | 20.5% | 21.7% | 22.1% | 22.2% | ||||||||||
| Burkina Faso | % | ... | ... | ... | ... | ... | ... | 18.0% | ... | 21.4% | 22.7% | 20.9% | ||||||||||
| Chile | % | ... | 19.6% | 21.2% | 21.3% | 21.4% | 21.2% | ... | ... | |||||||||||||
| Costa Rica | % | ... | 23.4% | 23.4% | 30.2% | 26.1% | 24.6% | ... | ||||||||||||||
| Dem. Republic of the Congo | % | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | 11.7% | 14.6% | 14.0% | ... | ... | ... | ||||
| Ethiopia | % | ... | ... | ... | 27.1% | 23.0% | 26.5% | 24.0% | 20.9% | ... | ... | |||||||||||
| Guatemala | % | ... | ... | ... | ... | ... | ... | 24.1% | 23.4% | 23.1% | 23.7% | 23.8% | ||||||||||
| Honduras | % | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | 24.6% | 18.0% | 19.7% | 23.2% | 20.1% | |||||
| Iran | % | 18.6% | 19.4% | 20.3% | 21.1% | 21.2% | ... | |||||||||||||||
| Namibia | % | ... | ... | ... | ... | 22.6% | 23.9% | 24.7% | 23.3% | 26.4% | ||||||||||||
| Nicaragua | % | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | 22.3% | 21.3% | 22.4% | 22.9% | 24.0% | ... | |||||
| Senegal | % | ... | 23.8% | 21.3% | 20.6% | 21.5% | 18.3% | |||||||||||||||
| Sierra Leone | % | ... | 20.4% | 12.5% | 19.9% | 32.7% | 35.0% | |||||||||||||||
| Turkmenistan | % | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | 23.0% | ... | ||
| Uzbekistan | % | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | 22.4% | 23.1% | 22.5% | 21.8% | 25.6% |
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