condition mean min max 4 h after light 86.292586 41.045423 131.539749 8 h after light 38.202542 21.537075 54.868009 12 h after light 17.8320895 13.291517 22.372662 4 h after dark 35.6680655 17.949551 53.38658 8 h after dark 75.6554785 53.38658 97.924377 12 h after dark 93.270794 93.270794 93.270794