condition	mean	min	max
4 h after light	16.814108	16.530034	17.098182
8 h after light	19.029339999999998	17.26052	20.79816
12 h after light	18.749632	17.474508	20.024756
4 h after dark	18.941178	18.556413	19.325943
8 h after dark	17.413785	15.136493	19.691077
12 h after dark	16.045343	16.045343	16.045343