condition	mean	min	max
4 h after light	7.975059999999999	7.86119	8.07702
8 h after light	7.9665	7.727469999999999	8.19318
12 h after light	7.915023333333333	7.61435	8.08751
4 h after dark	7.756163333333333	7.562989999999999	7.98251
8 h after dark	7.489286666666667	7.15738	7.8753899999999994
12 h after dark	7.1916400000000005	6.75373	7.598610000000001