condition	mean	min	max
4 h after light	23.9311785	22.261848	25.600509
8 h after light	19.8246225	19.162249	20.486996
12 h after light	16.6721775	14.259462	19.084893
4 h after dark	15.708344	15.027151	16.389537
8 h after dark	18.018375499999998	17.931115	18.105636
12 h after dark	17.980173	17.980173	17.980173