condition mean min max 3 h after light 0.49475066666666667 0.44041 0.584589 6 h after light 0.777473 0.695595 0.930248 9 h after light 0.807583 0.634297 1.04736 12 h after light 1.0442175 0.41943 1.38886 3 h after dark 1.2844023333333334 0.662087 1.72514 6 h after dark 1.28642 1.13087 1.42102 9 h after dark 1.030969 0.672477 1.37819 12 h after dark 0.694988 0.546985 0.842991