condition	mean	min	max
4 h after light	18.6979635	16.06971	21.326217
8 h after light	16.470455	16.470455	16.470455
12 h after light	18.818658	14.878026	22.75929
4 h after dark	15.857242	15.026132	16.688352
8 h after dark	24.7743825	23.168987	26.379778
12 h after dark	20.640085	20.640085	20.640085