condition	mean	min	max
4 h after light	2004.2	2004.2	2004.2
8 h after light	2117.0	2000.5	2233.5
12 h after light	2320.8	2227.4	2414.2
4 h after dark	2487.9	2347.4	2628.4
8 h after dark	2664.8	2638.7	2690.9
12 h after dark	2485.3	2199.7	2770.9