condition	mean	min	max
4 h after light	5.161536666666667	5.1138900000000005	5.18594
8 h after light	5.08588	5.00727	5.1379
12 h after light	5.12229	4.99669	5.21741
4 h after dark	5.122683333333334	4.9625900000000005	5.30074
8 h after dark	5.104213333333334	5.016830000000001	5.19068
12 h after dark	5.17345	5.15302	5.1991