condition mean min max 0 h after light 4.39528 4.38266 4.4079 4 h after light 6.884395 6.36156 7.40723 8 h after light 6.990545 6.89969 7.0814 4 h after dark 7.8905199999999995 7.48133 8.29971 8 h after dark 6.984615 6.6801 7.28913 12 h after dark 5.1599900000000005 4.56043 5.75955