condition mean min max 4 h after light 6.32735 5.08688 7.56782 8 h after light 5.022435 4.74693 5.29794 12 h after light 4.73992 4.16547 5.31437 4 h after dark 6.16723 6.12297 6.21149 8 h after dark 5.735720000000001 4.54969 6.92175 12 h after dark 6.4247499999999995 5.83332 7.01618