condition mean min max 0 h after light 12.071100000000001 11.8803 12.2619 2 h after light 6.15287 5.31673 6.98901 4 h after light 6.973575 6.29988 7.64727 8 h after light 32.467 31.0033 33.9307 12 h after light 54.9262 53.7203 56.1321 2 h after dark 48.7186 43.5305 53.9067 4 h after dark 42.70985 41.1639 44.2558 8 h after dark 23.557450000000003 22.2572 24.8577 12 h after dark 13.32635 13.0221 13.6306