Results 1 issues of diversos

How would you recommend fixing negative values in barChar? I can't explain properly, so I'll show you an example: ![github_eg](https://user-images.githubusercontent.com/14896863/29079716-c88316b0-7c55-11e7-9678-a3bd9c8f94cc.png) 2010: 0+0+0+0 2011: 0+0+0+0 2012: 0+0+0+0 2013: 0+5+8+0 2014: -38+0+13+0...