The “Balanced Galaxy” Gamepedia page’s info is, unfortunately, clearly severely outdated.
The source XML file seems to have last been uploaded late August LAST year (2017)…
… and has sublistings for both “Yellow” and “LushYellow”, with differing Lush probabilities…
The separate “source” XML file data actually gives different values than the table on the Wiki page…
The Wiki page itself was “last edited” late September LAST year…
… and there’s no indication that the current tabulated figures (implied Sept.'17) are meant to reflect NEXT 1.5+
(which, tbh, they might, but also highly likely not, given all the changes in NEXT)
Most certainly an INTERESTING set of numbers – thanks for sharing! 
– but suddenly there are THREE possibilities, all seemingly outdated, and NO certainty that any of them pertain to 1.5+.
Sadly, I have to discount the info as “unreliable at present”. 