condition	mean	min	max
0 h after light	7.9259450000000005	7.07052	8.78137
4 h after light	9.343595	8.81978	9.86741
8 h after light	12.405149999999999	11.6108	13.1995
4 h after dark	15.262599999999999	14.6466	15.8786
8 h after dark	19.6301	16.7093	22.5509
12 h after dark	11.58788	7.62216	15.5536