condition mean min max 0 h after light 178.464 159.836 197.092 4 h after light 127.08850000000001 120.295 133.882 8 h after light 508.3865 496.793 519.98 4 h after dark 466.3275 425.686 506.969 8 h after dark 311.05600000000004 286.545 335.567 12 h after dark 250.002 224.946 275.058