condition mean min max 4 h after light 0.515903 0.293896 0.73791 8 h after light 0.1690195 0.159453 0.178586 12 h after light 0.0 0.0 0.0 4 h after dark 0.09584975000000001 0.0644945 0.127205 8 h after dark 0.079455 0.0631286 0.0957814 12 h after dark 0.19472100000000003 0.125484 0.263958