condition mean min max 4 h after light 4.73639 4.67464 4.85364 8 h after light 4.76528 4.62092 4.8777099999999995 12 h after light 4.765766666666667 4.69222 4.83619 4 h after dark 4.83716 4.81252 4.86335 8 h after dark 4.7680533333333335 4.59269 4.90891 12 h after dark 4.8686533333333335 4.784330000000001 4.95942