condition mean min max 2 h after light 1.2393488333333333 0.363686 2.76152 6 h after light 1.1246019999999999 0.480253 1.61208 10 h after light 0.8957241666666667 0.0 1.96123 14 h after light 0.6869535 0.289347 1.02475 18 h after light 1.128989 0.802019 1.71046 2 h after dark 0.6086876666666666 0.246221 1.27004