condition mean min max 0 h after light 4.82962 4.31018 5.34906 4 h after light 0.9936985 0.802547 1.18485 8 h after light 0.23009 0.0 0.46018 4 h after dark 1.372725 1.14657 1.59888 8 h after dark 1.8998 1.3743 2.4253 12 h after dark 2.874105 2.61276 3.13545