condition mean min max 4 h after light 2.971635 2.24943 3.69384 8 h after light 3.3751550000000003 3.00509 3.74522 12 h after light 4.01753 3.37504 4.66002 4 h after dark 4.15809 1.91418 5.61304 8 h after dark 3.96548 2.33149 5.24362 12 h after dark 3.6839166666666667 2.97011 4.35442