condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.21700366666666668 0.0 0.651011 6 h after dark 0.351306 0.0 0.555768 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0