Prison conditions met international standards; although some lacked adequate medical care and sufficient heating in the winter or cooling in the summer and some facilities were overcrowded. Prisoners were not allowed to purchase or receive supplementary food. While death records are kept for 10 years, many of them were missing, which sparked an ongoing review of the prison system. Prisons operated at an average 117% capacity. In some institutions, two inmates were placed in cells designed for one inmate, and thirty or sixty in cells meant for 15.