condition mean min max 4 h after light 0.081614 0.0 0.163228 8 h after light 0.0557705 0.0 0.111541 12 h after light 0.122751 0.115518 0.129984 4 h after dark 0.46437100000000003 0.0 1.07864 8 h after dark 0.181249 0.0 0.326067 12 h after dark 0.82752 0.455906 1.13093