years | Variables increase | ||||||
IA | IT | AOA | IF | MR | AOL | ||
2008 | 59 | 41 | 100 | 61 | 39 | 100 | |
2009 | 60 | 40 | 100 | 36 | 64 | 100 | |
2010 | 50 | 50 | 100 | 54 | 46 | 100 | |
2011 | 43 | 57 | 100 | 41 | 59 | 100 | |
2012 | 61 | 39 | 100 | 57 | 43 | 100 | |