condition	mean	min	max
4 h after light	8.062422999999999	7.707245	8.417601
8 h after light	7.415768	7.095975	7.735561
12 h after light	7.501163	6.93475	8.067576
4 h after dark	7.9694285	7.912246	8.026611
8 h after dark	8.1268675	7.57675	8.676985
12 h after dark	8.235809	8.235809	8.235809