condition mean min max 2 h after light 1.51339 1.20328 1.85984 6 h after light 1.2744466666666667 1.1545 1.34371 10 h after light 2.1219033333333335 1.74085 2.4088 2 h after dark 11.328199999999999 10.7206 12.1853 6 h after dark 9.990883333333334 9.67735 10.4036 10 h after dark 9.2989 8.17976 9.91409