condition mean min max 0 h after light 2.999015 2.88849 3.10954 2 h after light 1.621465 0.0 3.24293 4 h after light 0.0 0.0 0.0 8 h after light 0.932895 0.0 1.86579 12 h after light 1.648585 0.0 3.29717 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0