condition mean min max 4 h after light 0.7420059999999999 0.248942 1.23507 8 h after light 0.8752 0.54025 1.21015 12 h after light 1.2291075 0.980235 1.47798 4 h after dark 1.8378649999999999 1.09208 2.58365 8 h after dark 1.3997845 0.641669 2.1579 12 h after dark 1.246575 1.06222 1.43093