condition	mean	min	max
4 h after light	12.99735	11.1555	14.8392
8 h after light	9.658764999999999	8.91183	10.4057
12 h after light	13.425605000000001	8.82271	18.0285
4 h after dark	22.50945	18.8011	26.2178
8 h after dark	15.59145	13.0075	18.1754
12 h after dark	18.56655	15.1478	21.9853