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Shizuoka prefecture (Chuubu area)November 2002
Nagasaki prefecture (Kyushu)November 2002
Kumamoto prefecture (Kyushu)November 2001
Kyoto (metropolitan area)November 1998
Mie prefecture (Kinki area)November 1998
Saitama prefecture (Kantou area)May 2020
Hiroshima CityMay 2019
Hokkaido (northernmost of the four main islands of Japan)May 2019
Shiga prefecture (Kinki area)May 2019
Hokkaido (northernmost of the four main islands of Japan)May 2018
Mie prefecture (Kinki area)May 2017
Kanagawa prefecture (Kantou area)May 2017
Yamagata prefecture (Tohoku area)May 2017
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