condition	mean	min	max
4 h after light	1594.115623	1573.074007	1615.157239
8 h after light	1511.851377	1450.628747	1573.074007
12 h after light	1389.8606325	1329.491411	1450.229854
4 h after dark	1513.1159895	1450.538384	1575.693595
8 h after dark	1698.301819	1568.339769	1828.263869
12 h after dark	1399.385903	1399.385903	1399.385903