I need to make a good bar chart based on the table below (the number of nodes with its probability of falling correspond to each **OF**):

[![Table of data][1]][1]

Thanks to **kglr** I got the necessary BarChart:

    data14GAOF = {{33/36, 3/36}, {11/36, 25/36}, {27/36, 8/36, 
        1/36}, {14/36, 22/36}, {13/36, 10/36, 2/36, 1/36, 1/36, 1/36, 
        2/36, 4/36, 1/36, 1/36}, {8/36, 16/36, 8/36, 4/36}};
    labels14GAOF = 
      Style[#, FontSize -> 18, White] & /@ {"node 4", "node 9", "node 7", 
        "node 3", "node 5", "node 6", "node 8", "node 10", "node 11", 
        "node 13"};
    grouplabels14GAOF = 
      Style[#, Black, Bold, FontSize -> 18] & /@ {"OF1(N-1)", "OF1", 
        "OF2(N-1)", "OF2", "OF3(N-1)", "OF3"};
    labeleddata14GAOF = 
      Labeled[##, Axis] & @@@ 
       Transpose[{SortBy[-First[#] &] /@ (MapIndexed[
              Labeled[#, labels14GAOF[[#2[[1]]]], Center] &, #] & /@ 
            data14GAOF), grouplabels14GAOF}];
    
    BarChart[labeleddata14GAOF, 
     ChartStyle -> {GrayLevel[0.1], GrayLevel[0.2], GrayLevel[0.3], 
       GrayLevel[0.4], GrayLevel[0.5], GrayLevel[0.6], GrayLevel[0.65], 
       GrayLevel[0.7], GrayLevel[0.75], GrayLevel[0.8],}, 
     ChartLayout -> "Stacked", ImageSize -> 900, 
     AxesStyle -> Directive[Black, 24], BarSpacing -> {0, 0.8}]

But, unfortunately, I didn't take something into account and, as a result, BarChart looks like (there is a mismatch in the last column which I marked):

[![enter image description here][2]][2]

There is a strong likelihood that I chose inappropriate way to visualize and represent results. 


Two questions

- What I have to do in order to get the right labels?  
- How to make the columns closer to each other in accordance with the grouping (group OF1, group OF2, group OF3).

________________________________________________________________________________
Thanks for help **m_goldberg**!

Following your advice I tried to add my barchart:

    data14GA = {{33/36, 3/36}, {11/36, 25/36}, {27/36, 1/36, 
        8/36}, {14/36, 22/36}, {1/36, 13/36, 1/36, 1/36, 2/36, 2/36, 
        10/36, 4/36, 1/36, 1/36}, {8/36, 8/36, 16/36, 4/36}};
    labels14GA = {{"node 4", "node 9"}, {"node 4", "node 9"}, {"node 4", 
        "node 7", "node 9"}, {"node 4", "node 9"}, {"node 3", "node 4", 
        "node 5", "node 6", "node 7", "node 8", "node 9", "node 10", 
        "node 11", "node 13"}, {"node 4", "node 5", "node 9", "node 11"}};
    grouplabels14GA = 
      Style[#, Black, Bold, FontSize -> 18] & /@ {"OF1(N-1)", "OF1", 
        "OF2(N-1)", "OF2", "OF3(N-1)", "OF3"};
    labeleddata14GA = 
      MapThread[
       Labeled[#1, #2, Axis] &, {SortBy[-First[#] &] /@ 
         Apply[Labeled[#1, Style[#2, FontSize -> 16, White], Center] &, 
          Transpose /@ Transpose[{data14GA, labels14GA}], {2}], 
        grouplabels14GA}];
    data14MOPSO = {{60/80, 20/80}, {23/40, 17/40}, {74/80, 4/80, 
        2/80}, {16/40, 24/40}, {8/80, 4/80, 7/80, 24/80, 3/80, 16/80, 
        4/80, 2/80, 12/80}, {3/40, 4/40, 1/40, 6/40, 4/40, 1/40, 21/40}};
    labels14MOPSO = {{"node 9", "node 4"}, {"node 4", 
        "node 9"}, {"node 9", "node 4", "node 7"}, {"node 4", 
        "node 9"}, {"node 9", "node 4", "node 7", "node 3", "node 5", 
        "node 10", "node 11", "node 13", "node 14"}, {"node 3", "node 4", 
        "node 5", "node 9", "node 10", "node 11", "node 14"}};
    grouplabels14MOPSO = 
      Style[#, Black, Bold, FontSize -> 18] & /@ {"OF1(N-1)", "OF1", 
        "OF2(N-1)", "OF2", "OF3(N-1)", "OF3"};
    labeleddata14MOPSO = 
      MapThread[
       Labeled[#1, #2, Axis] &, {SortBy[-First[#] &] /@ 
         Apply[Labeled[#1, Style[#2, FontSize -> 16, White], Center] &, 
          Transpose /@ Transpose[{data14MOPSO, labels14MOPSO}], {2}], 
        grouplabels14MOPSO}];
    BarChart[{labeleddata14GA, labeleddata14MOPSO}, 
     ChartStyle -> {GrayLevel[0.1], GrayLevel[0.2], GrayLevel[0.3], 
       GrayLevel[0.4], GrayLevel[0.5], GrayLevel[0.6], GrayLevel[0.65], 
       GrayLevel[0.7], GrayLevel[0.75], GrayLevel[0.8]}, 
     ChartLayout -> "Stacked", AxesStyle -> Directive[Black, 24], 
     BarSpacing -> {Automatic, .3}, ImageSize -> 800]

But it turned out incorrect (problem with the Bar dataset) and I tried another way:

    data14GAMOPSO = {{33/36, 3/36}, {11/36, 25/36}, {27/36, 1/36, 
        8/36}, {14/36, 22/36}, {1/36, 13/36, 1/36, 1/36, 2/36, 2/36, 
        10/36, 4/36, 1/36, 1/36}, {8/36, 8/36, 16/36, 4/36}, {60/80, 
        20/80}, {23/40, 17/40}, {74/80, 4/80, 2/80}, {16/40, 
        24/40}, {8/80, 4/80, 7/80, 24/80, 3/80, 16/80, 4/80, 2/80, 
        12/80}, {3/40, 4/40, 1/40, 6/40, 4/40, 1/40, 21/40}};
    labels14GAMOPSO = {{"node 4", "node 9"}, {"node 4", 
        "node 9"}, {"node 4", "node 7", "node 9"}, {"node 4", 
        "node 9"}, {"node 3", "node 4", "node 5", "node 6", "node 7", 
        "node 8", "node 9", "node 10", "node 11", "node 13"}, {"node 4", 
        "node 5", "node 9", "node 11"}, {"node 9", "node 4"}, {"node 4", 
        "node 9"}, {"node 9", "node 4", "node 7"}, {"node 4", 
        "node 9"}, {"node 9", "node 4", "node 7", "node 3", "node 5", 
        "node 10", "node 11", "node 13", "node 14"}, {"node 3", "node 4", 
        "node 5", "node 9", "node 10", "node 11", "node 14"}};
    grouplabels14GAMOPSO = 
      Style[#, Black, Bold, FontSize -> 18] & /@ {"OF1(N-1)", "OF1", 
        "OF2(N-1)", "OF2", "OF3(N-1)", "OF3", "OF1(N-1)", "OF1", 
        "OF2(N-1)", "OF2", "OF3(N-1)", "OF3"};
    labeleddata14GAMOPSO = 
      MapThread[
       Labeled[#1, #2, Axis] &, {SortBy[-First[#] &] /@ 
         Apply[Labeled[#1, Style[#2, FontSize -> 16, White], Center] &, 
          Transpose /@ Transpose[{data14GAMOPSO, labels14GAMOPSO}], {2}], 
        grouplabels14GAMOPSO}];
    BarChart[labeleddata14GAMOPSO, 
     ChartStyle -> {GrayLevel[0.1], GrayLevel[0.2], GrayLevel[0.3], 
       GrayLevel[0.4], GrayLevel[0.5], GrayLevel[0.6], GrayLevel[0.65], 
       GrayLevel[0.7], GrayLevel[0.75], GrayLevel[0.8]}, 
     ChartLayout -> "Stacked", AxesStyle -> Directive[Black, 24], 
     BarSpacing -> {Automatic, .3}, ImageSize -> 1500]

[![new barchart][3]][3]

It is correct but it would be better to sowehow group the columns. In other words to separate the columns [OF1(N-1)+OF1], [OF2(N-1)+OF2], [OF3(N-1)+OF3] from each other a bit because they represent different functions. 
Two questions:

 - How does it can be realised?  
 - Is it possible to make a space between
   groups of labeleddata14GA and labeleddata14MOPSO as well?


  [1]: https://i.sstatic.net/PLUWE.png
  [2]: https://i.sstatic.net/AO9V4.png
  [3]: https://i.sstatic.net/f0aPv.png