condition mean min max 0 h after light 4.557085 4.22666 4.88751 4 h after light 6.4385449999999995 5.68374 7.19335 8 h after light 7.030395 6.20836 7.85243 4 h after dark 8.488695 8.44377 8.53362 8 h after dark 7.023405 7.01156 7.03525 12 h after dark 5.227695 4.13003 6.32536