condition mean min max 3 h after light 0.04174 0.0 0.12522 6 h after light 0.0793034 0.0 0.160997 9 h after light 0.024753666666666663 0.0 0.074261 12 h after light 0.096508275 0.0 0.227669 3 h after dark 0.2752659 0.0941247 0.376481 6 h after dark 0.351356 0.134678 0.731826 9 h after dark 0.264554 0.207437 0.342875 12 h after dark 0.22804895 0.0932109 0.362887