Seems they use old data unless you craft a request with origin/referrer:

    curl 'https://cdn.statcdn.com/Statistic/1020000/1020964-blank-754.png' \
      -H 'Origin: https://www.statista.com' \
      -H 'Referer: https://www.statista.com/' \
      --output chart.png

Assuming it's a real chart, that will give you the image with the uptick in the last year.