condition	mean	min	max
4 h after light	645.3	645.3	645.3
8 h after light	672.45	669.4	675.5
12 h after light	711.25	695.3	727.2
4 h after dark	935.35	569.7	1301.0
8 h after dark	1121.0	1095.3	1146.7
12 h after dark	1004.8	993.2	1016.4