condition mean min max 4 h after light 2.67398 2.58999 2.75797 8 h after light 3.1892050000000003 3.01966 3.35875 12 h after light 5.2167 5.05773 5.37567 4 h after dark 6.3296 6.1191 6.5401 8 h after dark 4.430285 4.23352 4.62705 12 h after dark 3.6995750000000003 3.08642 4.31273