condition mean min max 4 h after light 3.6900983333333333 3.545126 3.9269769999999995 8 h after light 2.6871723333333333 2.061852 3.017307 12 h after light 1.7310946666666667 1.541415 1.9213099999999999 16 h after light 3.5548100000000002 2.961662 4.189896 4 h after dark 2.9111243333333334 2.638161 3.419168 8 h after dark 1.8478830000000002 1.7402540000000002 1.948184