:I think we all agree that the Bernard Wood list is a bit "antiquated". China back then was a middle power, today it is a great power. A simple look at the old World bank GDP statistics is enough. During the 1985-1998 period, when Bernard Wood did his study, it was just in between the middle powers Canada and Brazil. Since then it has grown with a factor 10, and today it ranks at place four among the other great powers. 

 :China GDP, showing year, GDP in million USD, and rank 
 :* 1985 304,911 #8 
 :* 1988 307,166 #10 
 :* 1990 354,644 #11 
 :* 1995 728,010 #9 
 :* 2000 1,198,480 #6 
 :* 2007 3,280,053 #4 
 :Sources: 12 

 :The status of China shows the 1998 list is not accurate for today. Which is why we need to publish it separately. And make clear the date of publication, and used criteria. Not silently remove China, and risk that it is not accurate either for any of the 31 out of the 39 other countries listed as "current middle powers".