Electoral system family

Constitution of Malta, 1964-09-21 (lastamended: Act XX of 2011), http://www.justiceservices.gov.mt/DownloadDocument.aspx?app=lom&itemid=8566&l=1

56.(1) The members of the House of Representatives shall be elected upon theprinciple of proportional representation by means of the single transferablevote from such number of electoral divisions, being an odd number and not lessthan nine and not more than fifteen, as Parliament shall from time to timedetermine.