condition	mean	min	max
0 h after light	5.75514	5.68197	5.82831
4 h after light	7.825520000000001	6.93503	8.71601
8 h after light	16.2877	14.8123	17.7631
4 h after dark	18.825049999999997	17.7871	19.863
8 h after dark	13.269300000000001	13.2476	13.291
12 h after dark	5.760035	4.33607	7.184