condition mean min max 2 h after light 0.4628676666666667 0.117434 0.703581 6 h after light 0.4964848333333333 0.0 0.864021 10 h after light 0.8525465 0.35688 1.09306 14 h after light 0.5173906666666667 0.317147 1.01365 18 h after light 0.8010515 0.425706 1.16923 2 h after dark 0.813828 0.446823 1.21343