The same holds for the Universities of Maribor and Primorska. Overall, around 65% of students come from the same region as their higher education institutions. In the absence of differential tuition fees, the driving factor behind the low inter-regional student mobility is the economic conditions of students and their parents. The share of foreign students in Slovenia (0.9% of total enrolment) and the proportion of Slovenian students studying abroad (2.1% of total enrolment) in 2007 were among the lowest in both the OECD and EU (IMAD, 2010).