Khat has been illegal in Denmark since 1993. In 2009, the Danish Health Authority investigated khat use among Somalis in Denmark. A questionnaire with 848 respondents was used. The responses indicated that 48% of Somali males and 16% of females used the narcotic on a monthly basis and that 29% of males and 6% of females used it two times or more a week. Half the respondents had never used khat. The responses indicated that Somalis constituted the great majority of users in Denmark.