in contrast in argentina and ireland where vocational programmes are not offered at all at this level as well as in brazil canada and india more than of upper secondary students are enrolled in general programmes table b these include apprenticeship programmes that involve concurrent schoolbased and workbased training as well as programmes that involve alternating periods of attendance at educational institutions and participation in workbased training see definitions section at the end of this indicator on average across the oecd of students in upper secondary education are enrolled in this type of programme although they are offered in and data are available for only oecd countries in hungary and latvia all vocational programmes are combined school and workbased programmes