condition mean min max 3 h after light 8.386463333333333 7.73166 9.57261 6 h after light 9.145393333333335 8.75135 9.52691 9 h after light 16.0625 13.635 17.9717 12 h after light 20.542025 18.3162 21.3608 3 h after dark 48.701566666666665 46.0827 52.6899 6 h after dark 24.0202 22.9835 26.023 9 h after dark 13.5353 11.2556 16.2841 12 h after dark 12.8057 11.9916 13.6198