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+AT Proof 2008, 2010–2011, 2013–2015, 2017:
+	Numista
+
+Austria Proof 2021:
+	https://www.muenzeoesterreich.at/eng/produkte/euro-coin-set-2021-p
+
+Austria Proof 2022:
+	https://www.muenzeoesterreich.at/eng/produkte/euro-coin-set-2022-p
+
+Austria Proof 2023:
+	https://www.muenzeoesterreich.at/eng/produkte/euro-coin-set-2023-p
+
+Austria Proof 2024–Onwards:
+	Münze Österreich claims that after 2023 there will be no more proof
+	sets of Austrian coins minted[1], so we can assume all following
+	years will have a mintage of 0.
+
+	[1]: https://www.muenzeoesterreich.at/eng/produkte/euro-coin-set-2023-p