"C1"	"C2"	"C3"	"C4"	"C5"	"C6"	"C7"	"C8"	"C9"
"Carpeted:"	11.8	8.2	7.1	13	10.8	10.1	14.6	14
"Uncarpeted:"	12.1	8.3	3.8	7.2	12	11.1	10.1	13.7