condition	mean	min	max
4 h after light	171.2255	169.748	172.703
8 h after light	98.8364	93.7608	103.912
12 h after light	41.159	39.0835	43.2345
4 h after dark	17.8142	17.0528	18.5756
8 h after dark	24.1278	24.0265	24.2291
12 h after dark	87.15035	85.8367	88.464