condition mean min max 3 h after light 4.812533333333333 0.0 10.5772 6 h after light 2.29784 0.0 3.49374 9 h after light 7.16629 0.0 13.8433 12 h after light 13.924895 3.20514 32.4293 3 h after dark 5.642013333333333 3.97508 7.95055 6 h after dark 3.60975 0.0 6.86845 9 h after dark 8.293066666666666 0.0 14.6015 12 h after dark 1.53262 0.0 3.06524