condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.06244345 0.0614162 0.0634707 8 h after light 0.0158523 0.0 0.0317046 4 h after dark 0.0152946 0.0 0.0305892 8 h after dark 0.01546665 0.0 0.0309333 12 h after dark 0.015552 0.0 0.031104