condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0924865 0.0 0.184973 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.090794 0.0 0.181588 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0971625 0.0 0.194325