condition	mean	min	max
4 h after light	20.46295	20.0603	20.8656
8 h after light	18.1019	16.7301	19.4737
12 h after light	16.7153	16.2606	17.17
4 h after dark	25.51995	25.3264	25.7135
8 h after dark	23.06895	22.9436	23.1943
12 h after dark	24.8234	23.5368	26.11