| N | Min | Max | Range | Mean | Var | Std | CV(%) |
251-10 | 50 | 4.88 | 59.59 | 54.71 | 29.67579 | 114.4226 | 10.69685 | 36.04571 |
251-12 | 50 | 6.16 | 46.64 | 40.48 | 24.35485 | 66.72524 | 8.168552 | 33.53973 |
251-14 | 50 | 2.66 | 38.76 | 36.1 | 19.5475 | 42.96936 | 6.555102 | 33.53422 |
251-16 | 50 | 1.03 | 34.45 | 33.42 | 17.4434 | 51.76717 | 7.194941 | 41.24735 |
251-18 | 50 | 5.58 | 34.45 | 28.87 | 15.61958 | 26.6531 | 5.162664 | 33.05251 |