condition mean min max 0 h after light 176.938 172.274 181.602 4 h after light 157.69400000000002 147.853 167.535 8 h after light 111.926 100.81 123.042 4 h after dark 161.8985 160.925 162.872 8 h after dark 173.824 172.243 175.405 12 h after dark 176.8095 172.844 180.775