condition	mean	min	max
4 h after light	1221.3	1221.3	1221.3
8 h after light	1065.4	912.5	1218.3
12 h after light	1109.7	1087.0	1132.4
4 h after dark	1061.8	969.8	1153.8
8 h after dark	1063.1	1044.4	1081.8
12 h after dark	1064.45	1019.7	1109.2