condition	mean	min	max
4 h after light	13.1409	11.7738	14.0189
8 h after light	11.86441	4.75903	16.4678
12 h after light	9.34358	6.3102	12.8848
4 h after dark	7.12069	6.01527	8.03739
8 h after dark	18.841033333333332	15.5975	20.7642
12 h after dark	6.568756666666666	4.08838	8.51938