The query results as follows：   

Years	Country/Area	Value(%)
2005	Aruba	17.61
2006	Aruba	NA
2007	Aruba	NA
2008	Aruba	NA
2009	Aruba	NA
2010	Aruba	NA
2011	Aruba	NA
2012	Aruba	25.10
2013	Aruba	NA
2014	Aruba	NA
2015	Aruba	NA
2016	Aruba	NA
2017	Aruba	NA

Data Description: Average total (current, capital and transfers) general government expenditure per student in the given level of education, expressed as a percentage of GDP per capita. Divide total government expenditure for a given level of education (ex. primary, secondary) by total enrolment in that same level, divide again by GDP per capita, and multiply by 100. For more information, consult the UNESCO Institute of Statistics website: http://www.uis.unesco.org/Education/
Data Sources: World Development Indicators
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Links to relevant data：

• Government expenditure per primary student as % of GDP per capita (%)
• Government expenditure per tertiary student as % of GDP per capita (%)