rownames,durable,age,quant
1,0,57.7,236
2,0.7,50.9,283
3,0,48.5,207
4,0,41.7,220
5,0,47.7,238
6,0,59.8,216
7,0,44.3,284
8,3.7,45.1,221
9,0,51.7,275
10,3,50,269
11,10.4,46.8,207
12,0,58,249
13,0,58.9,246
14,0,40,277
15,1.5,34.1,231
16,0,39.9,219
17,0,33.4,240
18,3.5,48.1,266
19,6.1,46.6,214
20,0,53.1,251