condition mean min max 4 h after light 9.945993333333334 9.81219 10.21148 8 h after light 11.12846 10.79151 11.36957 12 h after light 10.46044 10.08881 10.89165 4 h after dark 10.460293333333334 10.07023 10.8914 8 h after dark 9.86684 9.42934 10.341660000000001 12 h after dark 8.429513333333334 7.66546 9.436760000000001