condition mean min max 2 h after light 1.0272458333333334 0.263687 1.67161 6 h after light 1.914581 0.969956 4.11287 10 h after light 1.0146511666666667 0.0 2.6662 14 h after light 1.790185 0.0 5.57241 18 h after light 1.5824105000000002 0.482133 2.76465 2 h after dark 0.8885558333333333 0.0 3.03485