condition mean min max 4 h after light 0.47114 0.469308 0.472972 8 h after light 0.0 0.0 0.0 12 h after light 0.234005 0.0 0.46801 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.169917 0.0 0.339834