condition	mean	min	max
4 h after light	19.601468500000003	18.372623	20.830314
8 h after light	21.741193000000003	21.67282	21.809566
12 h after light	17.328191	16.027175	18.629207
4 h after dark	19.5620145	19.481677	19.642352
8 h after dark	18.861978999999998	18.511255	19.212703
12 h after dark	19.555579	19.555579	19.555579