condition mean min max 4 h after light 0.763667 0.471025 1.15686 8 h after light 0.6358936666666667 0.130834 1.25018 12 h after light 0.621779 0.335582 1.01403 4 h after dark 0.579314 0.512087 0.676739 8 h after dark 0.608056 0.404907 0.718919 12 h after dark 1.22718 1.09871 1.29504