Statistics: Thorium nuclear clocks for fundamental tests of physics

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Region #
EU - Europe 10
NA - North America 2
Total 12
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Country #
AT - Austria 6
FR - France 2
US - United States of America 2
DE - Germany 1
RU - Russian Federation 1
Total 12
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City #
Des Moines 2
Vienna 2
Unknown 8
Total 12
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Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Tot
2020 00 0000 0000 01 1
2021 00 0000 2000 00 2
2022 02 0100 4000 10 8
2023 00 0000 0001 00 1
Ever 12