condition mean min max 4 h after light 2.574945 1.27998 3.86991 8 h after light 6.645945 6.47982 6.81207 12 h after light 7.86768 6.8854 8.84996 4 h after dark 11.534849999999999 11.318 11.7517 8 h after dark 7.62477 7.41729 7.83225 12 h after dark 5.494095 5.19038 5.79781