Chinese middle class,
In 2002 it was 15%
http://www.ncpa.org/iss/int/2002/pd012402f.html
In 2004 china reported 19%
http://www.chinadaily.com.cn/english...ent_386060.htm
Of course we still have ten times the GDP.
I don't understand why their millitary is important. It's not like they can invade us. Sure they can become agresive but as soon as that happens their economy collapses because the world will stop trading with them.