condition	mean	min	max
4 h after light	21.4743665	20.019066	22.929667
8 h after light	20.5542975	18.211668	22.896927
12 h after light	19.082753	18.96012	19.205386
4 h after dark	20.956614000000002	20.019066	21.894162
8 h after dark	21.2417075	20.489944	21.993471
12 h after dark	20.780679	20.780679	20.780679