condition mean min max 0 h after light 8.838815 8.19516 9.48247 2 h after light 4.693735 3.98385 5.40362 4 h after light 6.29826 5.94778 6.64874 8 h after light 9.843145 8.52099 11.1653 12 h after light 7.19428 6.94302 7.44554 2 h after dark 7.666545 7.59525 7.73784 4 h after dark 9.05936 8.59104 9.52768 8 h after dark 10.79645 10.1388 11.4541 12 h after dark 8.080459999999999 7.04195 9.11897