condition	mean	min	max
4 h after light	526.5201755	521.61132	531.429031
8 h after light	512.2244035	487.326515	537.122292
12 h after light	581.434257	558.246216	604.622298
4 h after dark	486.707785	434.10659	539.30898
8 h after dark	620.7072905	539.30898	702.105601
12 h after dark	602.343514	602.343514	602.343514