This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
STR stats.svg en Stuttgart Airport statistical data de Flughafen Stuttgart Verkehrszahlen seit gnuplot own data from de Verkehrszahlen des Flughafens Stuttgart Gorgo Gnuplot script to generate this plot gnuplot Ubuntu input set timefmt set datafile separator output set key top left set style data lines set grid set xdata