condition mean min max 4 h after light 138.1091855 120.693595 155.524776 8 h after light 145.2723005 129.004852 161.539749 12 h after light 117.130438 84.38779 149.873086 4 h after dark 117.1923585 116.072975 118.311742 8 h after dark 104.0614825 89.811223 118.311742 12 h after dark 105.59152 105.59152 105.59152