condition	mean	min	max
4 h after light	555.7	555.7	555.7
8 h after light	515.6	466.7	564.5
12 h after light	491.9	477.1	506.7
4 h after dark	371.25	333.4	409.1
8 h after dark	309.45	308.7	310.2
12 h after dark	274.4	246.8	302.0