condition mean min max 4 h after light 12.760911 12.760911 12.760911 8 h after light 13.24898 12.760911 13.737049 12 h after light 12.0968645 9.918354 14.275375 4 h after dark 12.008204 11.255497 12.760911 8 h after dark 15.254013 14.652881 15.855145 12 h after dark 12.199438 12.199438 12.199438