condition	mean	min	max
4 h after light	5.735833333333334	5.60536	5.89711
8 h after light	5.8968533333333335	5.80567	6.05043
12 h after light	5.96783	5.95758	5.9795300000000005
4 h after dark	6.351656666666667	5.8665400000000005	6.694310000000001
8 h after dark	6.24278	6.1950199999999995	6.29927
12 h after dark	6.713896666666667	6.63267	6.774610000000001