condition mean min max 0 h after light 0.126822 0.0 0.253644 4 h after light 0.2584445 0.0 0.516889 8 h after light 0.129097 0.0 0.258194 4 h after dark 0.1245555 0.0 0.249111 8 h after dark 0.0 0.0 0.0 12 h after dark 0.2505445 0.247786 0.253303