condition	mean	min	max
0 h after light	4.724655	4.23149	5.21782
4 h after light	4.001555	2.93971	5.0634
8 h after light	1.329985	1.31104	1.34893
4 h after dark	3.219775	3.00967	3.42988
8 h after dark	6.55722	5.54676	7.56768
12 h after dark	3.92871	3.72185	4.13557