condition	mean	min	max
3 h after light	20.832966666666668	19.1002	24.196
6 h after light	15.358433333333334	13.2856	17.8149
9 h after light	14.456800000000001	13.5242	15.9121
12 h after light	16.9732	14.1138	21.069
3 h after dark	14.286299999999999	12.3821	15.7617
6 h after dark	14.9138	14.3427	15.2905
9 h after dark	14.422666666666666	12.422	16.6296
12 h after dark	15.349499999999999	13.7355	16.9635