condition	mean	min	max
4 h after light	581.5	581.5	581.5
8 h after light	500.25	491.0	509.5
12 h after light	479.0	406.1	551.9
4 h after dark	615.45	441.1	789.8
8 h after dark	739.45	696.3	782.6
12 h after dark	664.75	645.6	683.9