condition mean min max 4 h after light 174.574335 168.147114 181.001556 8 h after light 191.4055065 164.948223 217.86279 12 h after light 235.1147415 163.18471 307.044773 4 h after dark 108.46441899999999 49.455856 167.472982 8 h after dark 82.3280575 59.432195 105.22392 12 h after dark 34.520083 34.520083 34.520083