Teaching relies heavily on rote learning rather than on student-centred methodology. The establishment of reliable and coherent curricula for its primary and secondary schools is subject to such rapid changes that schools and their teachers are not always sure what they are supposed to be teaching, and authors and publishers of textbooks are unable to write and print new editions quickly enough to keep up with the volatility. Issues concerning university entrance has been in constant upheaval for a number of years. Nevertheless, Thai education has seen its greatest progress in the years since 2001. Most of the present generation of students are computer literate. Thailand was ranked 74th out of 100 countries globally for English proficiency. Thailand has the second highest number of English-medium private international schools in Southeast Asian Nations, according to the International School Consultancy Group 181 schools around the country in 2017 compared to just 10 international schools for expatriate children in 1992.