condition mean min max 0 h after light 2.1277049999999997 1.66697 2.58844 4 h after light 2.9411949999999996 1.54947 4.33292 8 h after light 2.8762100000000004 2.83524 2.91718 4 h after dark 1.093094 0.363168 1.82302 8 h after dark 0.776578 0.642694 0.910462 12 h after dark 2.50663 2.12336 2.8899