condition mean min max 4 h after light 139.913 134.652 145.174 8 h after light 115.1605 114.872 115.449 12 h after light 82.45105000000001 81.1422 83.7599 4 h after dark 12.54865 11.172 13.9253 8 h after dark 8.6298 7.89157 9.36803 12 h after dark 64.04429999999999 62.8497 65.2389