condition	mean	min	max
4 h after light	4.471863333333333	4.3154900000000005	4.61576
8 h after light	4.391733333333334	4.35957	4.41255
12 h after light	4.3577699999999995	4.33869	4.39115
4 h after dark	4.378853333333334	4.29128	4.50636
8 h after dark	4.37783	4.331840000000001	4.44281
12 h after dark	4.39424	4.34485	4.4618400000000005