condition	mean	min	max
4 h after light	18.514650000000003	17.9154	19.1139
8 h after light	11.119165	9.97183	12.2665
12 h after light	16.44845	14.1732	18.7237
4 h after dark	34.67593333333333	32.287	36.717
8 h after dark	31.784	23.875	45.1153
12 h after dark	29.892833333333332	27.8429	32.6774