- 2009-2011 . : - 2009 - 25%, 2010 30%, 2011 - 40%; - 25%; - 2009 18,5%, 2010 18%, 2011 20%; / 2009 -13%, 2010 -12%, 2011 -14%. - $20 . $90 . , , , . , , , , 10 . , , , , , , 2015 , 20-25 , . , , . , , ...