condition	mean	min	max
4 h after light	1011.5	1011.5	1011.5
8 h after light	1197.6	1171.5	1223.7
12 h after light	1123.45	1118.0	1128.9
4 h after dark	1100.9499999999998	922.3	1279.6
8 h after dark	951.5	794.2	1108.8
12 h after dark	857.95	719.7	996.2