condition	mean	min	max
4 h after light	7.275573333333333	7.18215	7.34898
8 h after light	7.32103	7.30808	7.33845
12 h after light	7.16789	7.028110000000001	7.24379
4 h after dark	7.299933333333334	7.1435	7.38012
8 h after dark	7.312143333333333	7.2217	7.40837
12 h after dark	7.300529999999999	7.18538	7.359139999999999