Both languages are still largely mutually intelligible, although this relation can in some fields (such as lexicon, spelling and grammar) be asymmetric, as it is easier for Dutch speakers to understand written Afrikaans than it is for Afrikaans speakers to understand written Dutch. Afrikaans is grammatically far less complex than Dutch, and vocabulary items are generally altered in a clearly patterned manner, e.g. vogel becomes voël ("bird") and regen becomes reën ("rain"). In South Africa, the number of students following Dutch at university, is difficult to estimate, since the academic study of Afrikaans inevitably includes the study of Dutch. Elsewhere in the world, the number of people learning Dutch is relatively small.

Answer this question, if possible (if impossible, reply "unanswerable"): Is it difficult or easy to estimate the number of students in South Africa who study Dutch?
difficult