condition	mean	min	max
0 h after light	16.6692	14.3364	19.002
4 h after light	14.49095	13.7	15.2819
8 h after light	8.860855	8.292	9.42971
4 h after dark	15.40645	13.4834	17.3295
8 h after dark	13.081949999999999	11.6099	14.554
12 h after dark	17.8649	17.6682	18.0616