condition mean min max 4 h after light 168.7872985 157.196768 180.377829 8 h after light 174.635696 168.616672 180.65472 12 h after light 167.0108265 162.943442 171.078211 4 h after dark 161.845574 151.30898 172.382168 8 h after dark 179.3460095 167.956996 190.735023 12 h after dark 168.616672 168.616672 168.616672