usefulWidths = {
let results = [];
for( let i = 1; i < 2000; i++ ) {
results.push( {
width: i,
cumulativePercentOfSessions: processedData
.filter( d => d.usefulPixelWidth <= i )
.reduce( ( acc, cv ) => acc += cv.sessionsPercent, 0 )
} );
}
return results;
}