condition	mean	min	max
4 h after light	19.305500000000002	19.2075	19.4035
8 h after light	23.4071	22.505	24.3092
12 h after light	23.62255	22.5609	24.6842
4 h after dark	21.39045	19.7314	23.0495
8 h after dark	20.3182	20.2085	20.4279
12 h after dark	19.41335	18.8794	19.9473