condition mean min max 3 h after light 1.3296896666666667 0.835639 2.02374 6 h after light 1.8072033333333333 1.11779 2.52607 9 h after light 1.3722050000000001 0.554967 2.86127 12 h after light 3.09969 1.68586 5.29422 3 h after dark 1.8603990000000001 0.952877 3.07182 6 h after dark 1.341467 0.981351 1.82284 9 h after dark 1.3772033333333333 0.0 2.88245 12 h after dark 1.3890266666666666 1.01295 2.01043