condition mean min max 4 h after light 193.7802825 156.77245 230.788115 8 h after light 370.473832 151.522787 589.424877 12 h after light 815.57209 542.770518 1088.373662 4 h after dark 1794.039749 821.539749 2766.539749 8 h after dark 1971.030216 1066.590707 2875.469725 12 h after dark 1465.087988 1465.087988 1465.087988