condition mean min max 4 h after light 179.317285 155.700935 202.933635 8 h after light 214.0012875 203.078211 224.924364 12 h after light 194.673651 194.057228 195.290074 4 h after dark 252.32384150000001 212.35291 292.294773 8 h after dark 241.62607000000003 202.558545 280.693595 12 h after dark 223.520068 223.520068 223.520068