condition	mean	min	max
0 h after light	8.787415	8.605	8.96983
4 h after light	6.81438	6.63514	6.99362
8 h after light	6.752409999999999	5.68176	7.82306
4 h after dark	8.698125	7.99439	9.40186
8 h after dark	8.05537	6.87151	9.23923
12 h after dark	8.735904999999999	8.06547	9.40634