037037033,8.108108108108109,0],
                        type: "bar",
                        name: "Ver"
                        };
                        
                        var data = [trace1, trace2, trace3, trace4, trace5, trace6, trace7];
                        var layout = {
                        title: "Citation types per year",
                        yaxis: {title: "Number of citation types (per abstract, in %)"},
                        xaxis: {title: "Jahr", tickmode: "linear"},
        