+Exchange rate USD/EUR history from CSV download provided by ECB:
+
+ curl https://sdw.ecb.europa.eu/export.do \
+ -Gd 'node=SEARCHRESULTS&q=EXR.D.USD.EUR.SP00.A&exportType=csv' |
+ awk -F, '{RS="\r\n"} /^[12]/{print $2,$1}' | graph
+
+Total population history from the World Bank dataset (XML):
+
+ curl http://api.worldbank.org/v2/country/1W/indicator/SP.POP.TOTL |
+ xmllint --xpath '//*[local-name()="date" or local-name()="value"]' - |
+ awk -F'<[^>]+>' 'BEGIN {RS="</wb:value>"} {print $4,$2}' | graph
+
+Movies per year from prepared JSON data:
+
+ curl https://github.com/prust/wikipedia-movie-data/raw/master/movies.json |
+ jq '.[].year' | uniq -c | graph
+