condition	mean	min	max
0 h after light	11.46955	11.166	11.7731
4 h after light	7.3622250000000005	6.78651	7.93794
8 h after light	8.6657	7.93565	9.39575
4 h after dark	8.50378	7.84916	9.1584
8 h after dark	10.190335000000001	9.79217	10.5885
12 h after dark	11.8397	11.3824	12.297