SELECT?year (COUNT(?s) AS?normas) WHERE {
?s eli:date_document ?d .
BIND(SUBSTR(STR(?d), 1, 4) AS?year)
} GROUP BY?yearORDER BY?year
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The query
PREFIX eli: <http://data.europa.eu/eli/ontology#>
SELECT ?year (COUNT(?s) AS ?normas) WHERE {
?s eli:date_document ?d .
BIND(SUBSTR(STR(?d), 1, 4) AS ?year)
} GROUP BY ?year ORDER BY ?year