condition mean min max 0 h after light 1.51205 1.19421 1.82989 4 h after light 3.93966 3.72928 4.15004 8 h after light 3.094995 2.18278 4.00721 4 h after dark 3.4157349999999997 3.36053 3.47094 8 h after dark 4.23948 3.44158 5.03738 12 h after dark 1.9597799999999999 1.66556 2.254