condition mean min max 4 h after light 2.03399 1.07693 3.14765 8 h after light 1.4348446666666668 0.324944 2.23989 12 h after light 1.578136 0.902578 2.50901 4 h after dark 1.92889 1.81131 2.14636 8 h after dark 2.0008066666666666 1.25636 3.13524 12 h after dark 2.68629 2.38221 3.14485