condition mean min max 0 h after light 2.848305 2.49213 3.20448 4 h after light 2.29076 1.74601 2.83551 8 h after light 1.796395 1.6739 1.91889 4 h after dark 1.7422749999999998 1.53825 1.9463 8 h after dark 2.29446 2.07633 2.51259 12 h after dark 2.5790300000000004 2.31592 2.84214