condition mean min max 4 h after light 172.325553 158.001288 186.649818 8 h after light 187.60364199999998 185.048557 190.158727 12 h after light 194.98998999999998 162.795774 227.184206 4 h after dark 259.250827 192.699513 325.802141 8 h after dark 291.76005250000003 205.141592 378.378513 12 h after dark 219.394513 219.394513 219.394513