Despite expanding the data collection years to 2011 and 2012, Greece and Canada still had incomplete information in the UIS database and they were the two OECD countries for which I used the Stockholm International Peace Research Institute's (SIPRI) military expenditure database to create estimates.
This version allowed me to use their current USD tab to obtain militaryexpenditure data for all countries with education expenditures and enrollments from 2013 — which was the most current year represented in the database.