First, your link doesn't even take me there. Secondly, here's another source confirming that number.
Rank
Country
Median income (US$, PPP)[3]
Year
1
Luxembourg
38,516
2013
2
Norway
36,043
2013
3
Switzerland
34,608
2013
4
United States
34,514
2016
5
Australia
31,340
2014
6
Canada
29,521
2013
7
Austria
29,278
2013
8
Iceland
27,919
2013
9
Denmark
27,157
2013
10
Belgium
26,922
2013
11
Netherlands
26,820
2014
12
Sweden
26,627
2013
13
Finland
25,810
2014
14
Germany
25,140
2013
15
France
24,547
2013
16
New Zealand
23,304
2012
17
United Kingdom
22,546
2016
18
Ireland
22,200
2013
19
South Korea
22,176
2014
20
Japan
21,675
2013
21
Italy
20,860
2013
22
Spain
20,600
2015
23
Israel
17,802
2014
24
Slovenia
16,224
2013
25
Czech Republic
15,391
2013
26
Slovakia
14,171
2013
27
Portugal
14,053
2013
28
Romania
13,966
2013
29
Estonia
13,719
2013
30
Poland
13,630
2013
Source: https://stats.oecd.org/Index.aspx?DataSetCode=IDD
Note, its the same one as quoted in the article.
Read shit dumbass, talk less and post even less than that.