 Complete the following phrase:  In September 2012 Gifu had 1,684,766 registered voters, the second-lowest of the 12 prefectures that were represented by 4 Councillors at that time. By comparison, the three most populous districts of Hokkaido, Hyogo at-large district and Fukuoka districts each had more than 4 million voters but were also represented by four Councillors each. To address this malapportionment, a November 2012 amendment to the Public Offices Election Law reduced Gifus representation along with Fukushimas representation to two Councillors. This change began to take effect at the 