condition	mean	min	max
4 h after light	8.04273	6.78742	9.29804
8 h after light	7.23504	6.59108	7.879
12 h after light	7.673210000000001	7.12783	8.21859
4 h after dark	11.622033333333333	11.3623	11.9827
8 h after dark	15.364666666666666	12.7937	17.1848
12 h after dark	8.779393333333333	7.39948	9.62317