Edit in JSFiddle

$(function(){

var tech, level;
var techs=["html","css","js","jq"];
var levels=["None","Beginner","Intermediate","Advanced","Expert"];

var counts=[[0,0,0,0,0],[0,0,0,0,0],[0,0,0,0,0],[0,0,0,0,0]];

for (var i=0; i< survey1.length; i++) {

    for (var itech=0; itech<techs.length; itech++) {
        tech=techs[itech];
        
        for (var ilevel=0; ilevel<levels.length; ilevel++) {
            level=levels[ilevel];
            if (survey1[i][tech] == level) {
                counts[itech][ilevel]++ ;
            }
        }
    }
}

$('#basicGChart').gchart({

    type: 'barVert',

    maxValue: 60,

    title: 'Summary Chart (Group 1)',

    titleColor: 'black',

    backgroundColor: $.gchart.gradient('horizontal', 'ccffff', 'ffffff'),

    barWidth: 40,
    barSpacing: 25,
    barGroupSpacing: 15,
    
    series: [$.gchart.series('HTML', counts[0], 'green'),
             $.gchart.series('CSS', counts[1], 'blue'),
             $.gchart.series('JavaScript', counts[2], 'red'),
             $.gchart.series('jQuery', counts[3], 'orange')],
   
    axes: [$.gchart.axis('bottom', ["None","Beginner","Intermediate","Advanced","Expert"], 'black'),
           $.gchart.axis('y', 0, 60)],

    legend: 'right'

});
});

<div id="basicGChart"></div> 

#basicGChart { width: 450px; height: 300px }