condition	mean	min	max
4 h after light	12.257375	9.69095	14.8238
8 h after light	12.276250000000001	11.75	12.8025
12 h after light	16.5048	15.7079	17.3017
4 h after dark	20.958633333333335	19.2316	22.3142
8 h after dark	19.9068	19.4501	20.7832
12 h after dark	12.4007	10.3536	14.1045