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"libzen" versions published in Ubuntu

Eoan (0.4.37-1): universe/libs
Disco (0.4.37-1): universe/libs
Cosmic (0.4.37-1): universe/libs
Bionic (0.4.37-1): universe/libs
Xenial-updates (0.4.32-1ubuntu0.16.04.1): universe/libs
Xenial (0.4.32-1): universe/libs
Trusty (0.4.29-1): universe/libs
Precise (0.4.23-1ubuntu1): universe/libs