condition mean min max 4 h after light 0.0184581 0.0 0.0369162 8 h after light 0.0299095 0.0 0.059819 12 h after light 0.01826445 0.0 0.0365289 4 h after dark 0.0321588 0.031928 0.0323896 8 h after dark 0.01600005 0.0 0.0320001 12 h after dark 0.0265246 0.0 0.0530492