Most of the ranking systems in Japan rank universities by the difficulty of their entrance exams, called "Hensachi". One example of such a ranking is Going broke universities - Disappearing universities by . Organizations who use other methods of ranking universities in Japan include Nikkei Business Publications, which annually releases the Brand rankings of Japanese universities every November. Toyo Keizai, who regularly releases the university rankings "Truly Strong Universities" once a year, is another example. Japanese leading prep school also released the Japan's Top 30 University Rankings in Natural Sciences and Technology for MEXT's in 2001.