condition mean min max 2 h after light 0.9158488333333333 0.15439 2.27981 6 h after light 0.4632558333333333 0.237446 0.731648 10 h after light 1.5153705 0.27702 2.50323 14 h after light 1.276591 0.572236 2.15257 18 h after light 0.4531968333333333 0.169137 0.657552 2 h after dark 1.0232748333333335 0.320184 1.84979