condition mean min max 3 h after light 2.94468 2.59172 3.25346 6 h after light 1.93137 1.67884 2.14611 9 h after light 2.87428 2.32737 3.19655 12 h after light 3.6544466666666664 2.55895 5.52746 3 h after dark 5.713563333333333 4.01081 6.57831 6 h after dark 6.2083200000000005 4.32509 9.13094 9 h after dark 5.40646 4.56116 6.95378 12 h after dark 4.0045866666666665 3.38489 4.81402