condition	mean	min	max
2 h after light	18.806583333333332	12.2335	21.351
6 h after light	13.90526	9.38206	17.3363
10 h after light	13.519775000000001	9.67985	17.4718
14 h after light	14.26305	12.4346	17.3703
18 h after light	18.5818	12.8526	23.7203
2 h after dark	20.24635	17.3231	25.7261