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 0.014797866666666666 0.0 0.0443936 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.017187366666666665 0.0 0.0515621 9 h after dark 0.0 0.0 0.0 12 h after dark 0.042804 0.0 0.128412