condition mean min max 4 h after light 1.3449933333333333 0.81044 1.69398 8 h after light 1.4437023333333334 0.519627 1.91657 12 h after light 1.67934 1.03726 2.42618 4 h after dark 1.81199 1.25214 2.17159 8 h after dark 1.6583333333333334 1.2885 2.17784 12 h after dark 1.9736500000000001 1.88715 2.06087