This structural feature of the system makes it difficult to create school units of appropriate “size efficiency", although there are many basic schools with only primary education classes (Years 1 to 4). Furthermore the Slovak Republic, similarly to other Central and Eastern European countries inherited a very extensive sector of secondary vocational schools providing specialised training in many, rather narrow vocational areas (in 2013, there were 460 secondary vocational schools). Education in secondary vocational schools is typically more expensive than in schools providing general education and the relative isolation of this sector from the world of work (especially when compared to work-based or company-based skills development forms), the often high drop-out rates and the relatively high proportion of graduates who find jobs in areas that are different from the profile of their original formal VET qualification shows serious efficiency problems in this typical Central and Eastern European model of skills development (World Bank, 2006).