condition mean min max 2 h after light 9.942556666666666 6.42995 16.0515 6 h after light 7.065791666666667 5.19137 13.2094 10 h after light 8.171553333333334 6.39716 9.48184 14 h after light 9.110915 7.57992 11.2747 18 h after light 9.115653333333332 5.82325 13.6288 2 h after dark 11.953524999999999 9.90255 17.0719