condition mean min max 4 h after light 7.726336666666667 6.08959 9.72218 8 h after light 4.1881699999999995 1.56051 6.7649 12 h after light 9.25159 3.03926 18.3902 4 h after dark 8.128443333333333 4.8412 12.2732 8 h after dark 6.53573 5.25019 8.44762 12 h after dark 5.021106666666666 2.964 6.53751