vessel  origin               type  in service                                         unit
0  xavery czernicki class  poland   logistic support           1        2nd minelaying and transport squadron
1            lublin class  poland      landing craft           5        2nd minelaying and transport squadron
2              deba class  poland      landing craft           3        2nd minelaying and transport squadron
3            gardno class  poland        minesweeper          12                    12th minesweeper squadron
4           various class  poland  auxiliary vessels          14  naval base swinoujscie (auxiliary squadron)

Table as JSON:
{"vessel":{"0":"xavery czernicki class","1":"lublin class","2":"deba class","3":"gardno class","4":"various class"},"origin":{"0":"poland","1":"poland","2":"poland","3":"poland","4":"poland"},"type":{"0":"logistic support","1":"landing craft","2":"landing craft","3":"minesweeper","4":"auxiliary vessels"},"in service":{"0":1,"1":5,"2":3,"3":12,"4":14},"unit":{"0":"2nd minelaying and transport squadron","1":"2nd minelaying and transport squadron","2":"2nd minelaying and transport squadron","3":"12th minesweeper squadron","4":"naval base swinoujscie (auxiliary squadron)"}}