condition	mean	min	max
4 h after light	13.6481	12.651	14.6452
8 h after light	22.57105	22.0464	23.0957
12 h after light	21.25385	18.9466	23.5611
4 h after dark	34.8339	32.9493	36.7185
8 h after dark	24.56615	23.4269	25.7054
12 h after dark	19.13485	19.0601	19.2096