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			   }
];

var year = "2015-16";
var level_count = Object.keys(data[0][year]).length;//list of levels

var keys = Object.keys(data[0]);//assumes each object has the same keys, i.e., here all 4 years
keys.shift();//list of academic years covered by the data

var sumValues = obj => Object.values(obj).reduce((a,b) => a + b);//to get the sum across levels

var data_etoePerc = [];//modified main dataset that changes the numbers to percentages of total
data.forEach(function(d,j){
	var data_sum = {"program":d.program};
	for(var i=0;i<keys.length;i++){
		try{
			var year_data = d[keys[i]];
			var levels_object = {};
			data_sum[keys[i]] = levels_object;
			levels_object["sum"] = sumValues(year_data);
			for(var k=0;k<level_count;k++){
				var level = k.toString();
				levels_object[k]=(100*year_data[k]/levels_object["sum"].toFixed(2));
				}
			levels_object["e-toe"] = 100 - levels_object["0"];
			}catch(err){};
	}
	data_etoePerc[j] = data_sum;
});


export {data, keys, data_etoePerc, year};