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Aichi prefecture (Chuubu area)July 1998
Fukushima prefecture (Tohoku area)January 2020
Mie prefecture (Kinki area)January 2019
Wakayama prefecture (Kinki area)January 2019
Tottori prefecture (Chuugoku area)January 2018
Hokkaido (northernmost of the four main islands of Japan)January 2018
Gunma prefecture (Kantou area)January 2018
Ibaraki prefecture (Kantou area)January 2018
Kumamoto prefecture (Kyushu)January 2017
Gunma prefecture (Kantou area)January 2017
Saitama prefecture (Kantou area)January 2016
Toyama prefecture (Hokuriku area)January 2016
Ibaraki prefecture (Kantou area)January 2016
Aichi prefecture (Chuubu area)January 2015
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