condition mean min max 4 h after light 0.124471 0.0 0.248942 8 h after light 0.2016925 0.0 0.403385 12 h after light 0.123165 0.0 0.24633 4 h after dark 0.1092085 0.0 0.218417 8 h after dark 0.107895 0.0 0.21579 12 h after dark 0.1062225 0.0 0.212445