2011:
2012:
2013:
soep-is-2013-a/Q257 soep-is-2013-f/Q257
2014:
soep-is-2014-a/Q247 soep-is-2014-f/Q247
2015:
2016:
2017:
2019:
2020:
soep-bip-2020-e/Q218 soep-is-2020/Q369
2022:
2023:
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6f582067-eb45-50d9-ad6b-a277e2cf3070
DE
2018: