condition mean min max 4 h after light 12.3268015 11.805043 12.84856 8 h after light 12.098507999999999 11.805043 12.391973 12 h after light 12.274120499999999 11.805043 12.743198 4 h after dark 12.254272 11.351406 13.157138 8 h after dark 11.901931000000001 10.988127 12.815735 12 h after dark 10.897245 10.897245 10.897245