condition mean min max 4 h after light 10.0073875 9.816115 10.19866 8 h after light 9.297329000000001 9.228393 9.366265 12 h after light 8.806724500000001 8.789315 8.824134 4 h after dark 8.947715500000001 8.93021 8.965221 8 h after dark 8.6470295 8.409807 8.884252 12 h after dark 9.538025 9.538025 9.538025