Yours are a different time frame, In think...
From your site....
Figures have been released for the 2016-17 campaign, with some surprises among the higher and lower spenders.
My Figures are for the 2017 financial year
I found another website, which seems to back up my original post..
https://www.goal.com/en/lists/juventus-real-madrid-the-top-20-highest-wage-bills-in-europe/1h8hbr00xbj5a18mn4h9pcpkc7