condition	mean	min	max
4 h after light	8.03527	7.74435	8.21118
8 h after light	8.154816666666667	7.7763	8.45513
12 h after light	7.940309999999999	7.65687	8.12486
4 h after dark	8.00772	7.74874	8.14156
8 h after dark	7.989176666666667	7.6778699999999995	8.22765
12 h after dark	8.042243333333333	7.662389999999999	8.34177