Yeah, that New York number is waaaaay off. Just check this list on the forum:
http://forum.skyscraperpage.com/showthread.php?t=216002 or New York Yimby's awesome list:
http://www.yimbyforums.com/c/new-york
What's most impressive is that we 5 supertalls going up right now with 7 more proposed and likely.