righe={
let righe = [];
rankingData.forEach(function(d) {
const name = d['names']
for (let y in years){
let riga = {};
riga['name'] = name;
riga['year'] = years[y];
riga['value'] = +d[years[y]];
riga['lastValue'] = +(years[y]=="1" ? d[years[y]] : d[years[y-1]])
righe.push(riga);
}
})
return righe
}