condition mean min max 4 h after light 0.452588 0.32846 0.576716 8 h after light 1.117956 0.965182 1.27073 12 h after light 0.9711485 0.614547 1.32775 4 h after dark 2.09679 1.97325 2.19393 8 h after dark 1.6279066666666666 1.44687 1.84457 12 h after dark 0.93064 0.0 1.76566