condition mean min max 4 h after light 6.699785 6.60777 6.7918 8 h after light 5.670865 5.42563 5.9161 12 h after light 7.41305 7.24214 7.58396 4 h after dark 9.075345 7.64339 10.5073 8 h after dark 10.658999999999999 10.2091 11.1089 12 h after dark 9.266165 9.17612 9.35621