condition mean min max 4 h after light 2.7947100000000002 2.61949 2.96993 8 h after light 1.5492599999999999 1.06944 2.02908 12 h after light 2.317875 1.58813 3.04762 4 h after dark 2.634075 2.50925 2.7589 8 h after dark 5.8174600000000005 5.10351 6.53141 12 h after dark 3.969395 3.7146 4.22419