condition mean min max 4 h after light 8.001169 8.001169 8.001169 8 h after light 7.659144 7.317119 8.001169 12 h after light 7.799742999999999 6.870556 8.72893 4 h after dark 9.0754395 8.523634 9.627245 8 h after dark 8.3449375 7.964647 8.725228 12 h after dark 8.001169 8.001169 8.001169