condition mean min max 4 h after light 506.1026455 15.841957 996.363334 8 h after light 660.7317255 400.710305 920.753146 12 h after light 147.764808 17.702591 277.827025 4 h after dark 13.650274 12.43557 14.864978 8 h after dark 14.652519999999999 13.98347 15.32157 12 h after dark 12.406134 12.406134 12.406134