condition	mean	min	max
4 h after light	14.2100775	13.074267	15.345888
8 h after light	17.0120405	14.428298	19.595783
12 h after light	18.1760065	13.803973	22.54804
4 h after dark	17.708053	12.966899	22.449207
8 h after dark	21.438416	14.609744	28.267088
12 h after dark	11.471785	11.471785	11.471785