condition mean min max 0 h after light 5.239965 4.77198 5.70795 2 h after light 3.9104850000000004 3.57168 4.24929 4 h after light 4.6332249999999995 4.41777 4.84868 8 h after light 6.425185 4.63673 8.21364 12 h after light 14.2039 13.5795 14.8283 2 h after dark 14.30705 13.0568 15.5573 4 h after dark 15.0341 14.0155 16.0527 8 h after dark 10.12272 8.91434 11.3311 12 h after dark 8.239905 5.44321 11.0366