| Month | 1 | 2 | 3 | 4 | 5 |
| April 2012 | 0,49% | 0,56% | 0,54% | 0,58% | 0,63% | May 2012 | 0,5% | 0,66% | 0,76% | 0,74% | 0,65% | June 2012 | 0,66% | 0,8% | 0,86% | 0,91% | 1,09% | July 2012 | 0,45% | 0,6% | 0,76% | 1,06% | 1,21% | August 2012 | 0,69% | 0,91% | 1,01% | 1,08% | 1,18% | September 2012 | 0,44% | 0,53% | 0,49% | 0,48% | 0,49% | October 2012 | 0,36% | 0,45% | 0,61% | 0,73% | 0,83% | November 2012 | 0,63% | 0,69% | 0,75% | 0,88% | 0,92% | December 2012 | 0,52% | 0,67% | 0,82% | 0,83% | 0,86% | January 2013 | 0,44% | 0,51% | 0,55% | 0,61% | 0,7% | February 2013 | 0,65% | 0,8% | 1,08% | 1,22% | 1,42% | March 2013 | 0,65% | 0,87% | 1,26% | 1,48% | 1,8% |
|
|