condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0867845 0.0 0.173569 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.04192245 0.0 0.0838449 12 h after dark 0.0 0.0 0.0