condition mean min max 0 h after light 1.79324 0.0 3.58648 2 h after light 1.668725 0.0 3.33745 4 h after light 1.632835 0.0 3.26567 8 h after light 3.42753 0.0 6.85506 12 h after light 3.57447 3.34604 3.8029 2 h after dark 0.0 0.0 0.0 4 h after dark 1.601015 0.0 3.20203 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0