condition mean min max 0 h after light 21.0371 20.7793 21.2949 2 h after light 16.21165 15.9019 16.5214 4 h after light 15.1695 12.437 17.902 8 h after light 17.88775 16.2209 19.5546 12 h after light 32.4692 29.3767 35.5617 2 h after dark 41.7786 39.3115 44.2457 4 h after dark 40.41315 38.4456 42.3807 8 h after dark 35.29875 34.6444 35.9531 12 h after dark 28.546 24.0017 33.0903