condition mean min max 4 h after light 63.16095 51.264514 75.057386 8 h after light 51.50135349999999 51.22042 51.782287 12 h after light 53.265146 49.870097 56.660195 4 h after dark 45.019102000000004 38.696922 51.341282 8 h after dark 51.564490500000005 41.287692 61.841289 12 h after dark 56.445405 56.445405 56.445405