condition	mean	min	max
0 h after light	7.518335	7.30885	7.72782
4 h after light	3.67492	3.3746	3.97524
8 h after light	3.661205	3.60905	3.71336
4 h after dark	8.24269	8.06112	8.42426
8 h after dark	9.2509	7.8181	10.6837
12 h after dark	7.041	6.93977	7.14223