condition mean min max 0 h after light 5.57194 5.37032 5.77356 4 h after light 6.903824999999999 6.1558 7.65185 8 h after light 9.43048 8.66666 10.1943 4 h after dark 9.367925 8.61905 10.1168 8 h after dark 8.807865 8.54256 9.07317 12 h after dark 6.335965 6.06075 6.61118