condition	mean	min	max
4 h after light	2615.3	2615.3	2615.3
8 h after light	2680.95	2672.0	2689.9
12 h after light	2488.55	2389.8	2587.3
4 h after dark	2166.75	2108.5	2225.0
8 h after dark	2223.85	1966.8	2480.9
12 h after dark	2138.8	1954.7	2322.9