condition mean min max 4 h after light 0.48469550000000006 0.195367 0.774024 8 h after light 0.7168935000000001 0.659745 0.774042 12 h after light 1.73038 1.65672 1.80404 4 h after dark 3.04293 2.75871 3.31488 8 h after dark 2.88975 2.67758 3.1719 12 h after dark 1.74165 1.37096 2.09282