condition	mean	min	max
4 h after light	22.0559	20.9201	23.1917
8 h after light	16.83535	16.4524	17.2183
12 h after light	19.7098	18.4466	20.973
4 h after dark	27.79365	27.2559	28.3314
8 h after dark	33.37325	33.3693	33.3772
12 h after dark	33.223	32.4499	33.9961