condition mean min max 0 h after light 0.7872365 0.617874 0.956599 4 h after light 0.7836705 0.515101 1.05224 8 h after light 2.107235 1.65816 2.55631 4 h after dark 2.26629 2.26182 2.27076 8 h after dark 0.860969 0.836805 0.885133 12 h after dark 0.6651965 0.617044 0.713349