condition mean min max 0 h after light 2.673265 2.59337 2.75316 2 h after light 5.06263 5.02286 5.1024 4 h after light 6.675615 5.5249 7.82633 8 h after light 3.76142 3.11575 4.40709 12 h after light 4.704345 3.5947 5.81399 2 h after dark 4.15817 3.85212 4.46422 4 h after dark 3.600525 3.36414 3.83691 8 h after dark 2.849325 2.78701 2.91164 12 h after dark 1.942955 1.83678 2.04913