condition mean min max 4 h after light 1.028699 0.906338 1.15106 8 h after light 1.78075 1.74895 1.81255 12 h after light 1.317255 1.23964 1.39487 4 h after dark 2.13046 1.5427 2.59847 8 h after dark 1.7232633333333334 1.63499 1.79952 12 h after dark 1.4885076666666666 0.961213 1.77058