condition	mean	min	max
4 h after light	12.599	10.5509	14.6471
8 h after light	12.9333	10.5224	15.3442
12 h after light	20.186500000000002	19.253	21.12
4 h after dark	17.1049	14.0699	21.9561
8 h after dark	16.615166666666667	4.7864	24.4139
12 h after dark	15.547253333333334	7.34286	25.3713