condition mean min max 3 h after light 0.069353 0.0 0.208059 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.043186 0.0 0.172744 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.18464133333333332 0.0 0.553924 12 h after dark 0.294773 0.165204 0.424342