condition mean min max 4 h after light 1.048215 1.0288 1.06763 8 h after light 2.74476 2.52859 2.96093 12 h after light 2.040345 1.84594 2.23475 4 h after dark 3.314865 2.31477 4.31496 8 h after dark 1.1629200000000002 1.12898 1.19686 12 h after dark 1.0963500000000002 1.08631 1.10639