condition mean min max 0 h after light 7.454005 6.76978 8.13823 4 h after light 7.420954999999999 7.04313 7.79878 8 h after light 9.533235000000001 8.63217 10.4343 4 h after dark 10.238895 9.93819 10.5396 8 h after dark 7.720829999999999 6.87794 8.56372 12 h after dark 7.448175 6.3337 8.56265