rownames,dat
1,32.2
2,33
3,30.8
4,33.8
5,32.2
6,33.3
7,31.7
8,35.7
9,32.4
10,31.2
11,26.6
12,30.7
13,32.5
14,30.7
15,31.2
16,30.3
17,32.3
18,31.7