|
| 2007 | 2008 | 2009 | 2010 | 2011 | 2012 |
| X1 | 1.00 | 0.83 | 0.75 | 0.86 | 0.82 | 0.69 |
| X2 | 0.81 | 1.00 | −0.12 | 0.56 | 0.92 | 0.44 |
| X3 | 0.22 | 0.27 | 0.21 | 0.67 | 1.00 | 1.00 |
| X4 | 0.91 | 0.81 | 0.80 | 0.79 | 0.87 | 1.00 |
| X5 | 1.00 | 0.92 | 0.87 | 0.84 | 0.86 | 0.92 |
| X6 | 0.49 | 0.66 | 0.86 | 0.97 | 0.97 | 1.00 |
| X7 | 0.85 | 0.71 | 0.38 | 1.00 | 0.82 | 0.84 |
| X8 | 1.00 | 0.96 | 0.84 | 0.88 | 0.88 | 0.88 |
| X9 | 1.00 | 1.05 | 1.36 | 1.31 | 1.40 | 1.48 |
| X10 | 1.00 | 1.03 | 1.14 | 1.10 | 1.10 | 1.10 |
| X11 | 1.00 | 1.17 | 1.56 | 1.50 | 1.46 | 1.35 |
| X12 | 0.84 | 0.82 | 0.84 | 0.87 | 0.93 | 1.00 |
| X13 | 0.74 | 0.75 | 0.89 | 0.88 | 0.94 | 1.00 |
| X14 | 0.99 | 1.00 | 0.99 | 1.00 | 1.00 | 0.98 |
| X15 | 1.00 | 0.91 | 0.66 | 0.46 | 0.42 | 0.36 |
| X16 | 1.00 | 0.93 | 0.95 | 0.94 | 0.96 | 0.96 |
| X17 | 1.00 | 0.63 | 0.50 | 0.58 | 0.44 | 0.54 |
| X18 | 1.00 | 0.88 | 0.79 | 0.81 | 0.91 | 0.97 |