condition	mean	min	max
4 h after light	6.04945	5.93839	6.16236
8 h after light	5.8938999999999995	5.6740699999999995	6.06032
12 h after light	5.89476	5.70718	6.10032
4 h after dark	6.006413333333334	5.96185	6.08099
8 h after dark	5.865193333333333	5.49841	6.05368
12 h after dark	5.863943333333333	5.72012	6.02187