condition mean min max 0 h after light 2.080085 0.0 4.16017 4 h after light 4.1017 0.0 8.2034 8 h after light 4.11585 0.0 8.2317 4 h after dark 2.04291 0.0 4.08582 8 h after dark 12.34355 12.2918 12.3953 12 h after dark 4.064085 0.0 8.12817