condition mean min max 4 h after light 0.380201 0.0 0.785123 8 h after light 0.0 0.0 0.0 12 h after light 0.0269235 0.0 0.0807705 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0515887 0.0 0.104695