condition	mean	min	max
4 h after light	22.8539305	20.694437	25.013424
8 h after light	21.3802875	20.694437	22.066138
12 h after light	20.592833	19.94903	21.236636
4 h after dark	19.8584165	19.783432	19.933401
8 h after dark	18.819018	18.801388	18.836648
12 h after dark	20.694437	20.694437	20.694437