condition mean min max 4 h after light 140.868737 126.604458 155.133016 8 h after light 118.891468 103.274438 134.508498 12 h after light 148.232057 118.155134 178.30898 4 h after dark 149.176721 144.492548 153.860894 8 h after dark 144.7933975 141.047046 148.539749 12 h after dark 188.30898 188.30898 188.30898