condition mean min max 2 h after light 1.1439505 0.707724 1.73096 6 h after light 0.7243048333333334 0.489788 1.03546 10 h after light 1.1512951666666666 0.717962 1.67426 14 h after light 1.4568116666666666 1.21825 1.78528 18 h after light 2.216355 1.52691 3.0685 2 h after dark 1.610565 1.19854 2.48949