condition	mean	min	max
0 h after light	2.281245	2.25104	2.31145
4 h after light	9.446565	8.60453	10.2886
8 h after light	25.08195	22.732	27.4319
4 h after dark	15.99895	14.1971	17.8008
8 h after dark	8.259325	8.24008	8.27857
12 h after dark	2.92427	2.64421	3.20433