condition	mean	min	max
4 h after light	7.07846	6.8785300000000005	7.259519999999999
8 h after light	6.92467	6.7809	7.151489999999999
12 h after light	7.309973333333334	7.30555	7.31848
4 h after dark	7.127853333333333	7.01243	7.196510000000001
8 h after dark	6.936306666666667	6.73565	7.132630000000001
12 h after dark	7.0164	6.794169999999999	7.212960000000001