condition	mean	min	max
4 h after light	9.119273333333334	8.97684	9.3354
8 h after light	9.025363333333333	8.73911	9.33692
12 h after light	8.799173333333334	8.5119	9.03399
4 h after dark	8.351469999999999	8.06654	8.66018
8 h after dark	8.29636	8.02259	8.75222
12 h after dark	8.101773333333334	7.97525	8.17603