union-int | HashSet HashSetNoC IntSet     Set PatriciaTrie BStrTrie StringSet TernaryTrie    AVL
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union-int/04/asc |  100.00            100.73  581.20                                             319.53
union-int/04/rnd |  100.00            102.67 1098.77                                             461.55
union-int/12/asc |  100.00            116.15  563.95                                             315.64
union-int/12/rnd |  100.00             91.87  541.55                                             356.25
union-int/20/asc |  100.00             96.44  212.29                                             139.86
union-int/20/rnd |  100.00             90.00  225.32                                             150.80
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        Ari mean |  100.00             99.64  537.18                                             290.60
        Geo mean |  100.00             99.28  458.82                                             265.44