Disposable household and per capita income

Columns: Rank | Country | NCU | Currency in 2004 | PPP rate | Median Income ( PPP )
10 | Sweden | 189,475 | Swedish Krona | 9.6 | 19,736 | 11 | Belgium | 17,818 | Euro | 0.924 | 19,284 | 12 | South Korea | 16,665,877 | Won | 886.2 | 18,806 | 13 | France | 17,120 | Euro | 0.952 | 17,984 | 14 | Australia | 25,581 | Australian Dollar | 1.44 | 17,764 | 15 | Japan | 2,644,730 | Yen | 150.8 | 17,538 | 16 | Spain | 12,319 | Euro | 0.788 | 15,633 | 17 | Italy | 13,367 | Euro | 0.91 | 14,689 | 18 | Poland | 12,697 | Polish złoty | 2.08 | 6,104

Example questions:
What is the official language of the country with a median equivalized disposable household income ( PPP ) of 22,622 ? | What is the official name of the country with a median equivalized disposable household income ( PPP ) of 23,962 ? | What is the capital of the country with a median equivalized disposable household income ( PPP ) of 26,672 ? | What is the population of the country with a median equivalized disposable household income ( PPP ) of 23,794 ?

Answers:
German | Swiss Confederation | Washington , D.C. | 5,312,300