condition	mean	min	max
4 h after light	12.2854	11.7727	12.7981
8 h after light	13.1432	12.9413	13.3451
12 h after light	20.33485	18.9991	21.6706
4 h after dark	19.842	19.0922	20.5777
8 h after dark	20.632633333333334	19.9477	21.0899
12 h after dark	18.830933333333334	17.2975	21.6754