Likert Answers Doen't Show Up in Graphs

For some reason the anwers to a likert question are not showing in the total results' graph. When you check the single results, the answers are there but they don't appear in the graph, which shows everything at 0. Likert Matrix works fine in the graphs.

So it looks like this:

http://chart.apis.google.com/chart?&cht=bvs&chs=500x250&chbh=r,70,10&chxt=x&chxl=0:|Strongly%20Disagree|Disagree|No%20Opinion|Agree|Strongly%20Agree&chm=N,000000,0,,10|N,000000,1,,10|N,000000,2,,10&chds=0,1&chd=t:0,0,0,0,0