condition	mean	min	max
4 h after light	5.021953333333333	4.91104	5.09426
8 h after light	5.081893333333333	4.84045	5.42295
12 h after light	4.95719	4.80047	5.23791
4 h after dark	5.07515	4.91151	5.36505
8 h after dark	4.99733	4.65793	5.3734
12 h after dark	5.079643333333333	4.90945	5.3983