condition mean min max 4 h after light 0.1189662 0.0337644 0.204168 8 h after light 0.2023401 0.0738472 0.330833 12 h after light 0.5040225 0.401967 0.606078 4 h after dark 0.7406444999999999 0.686677 0.794612 8 h after dark 0.461712 0.280216 0.643208 12 h after dark 0.158171 0.145196 0.171146