I don’t know what point you’re trying to make. According to your own quoted numbers:
combined GDP of all NATO members +Sweden = $45.93319 trillion
total GDP of only the five initial BRICS member states = $65 trillion
So you compare NATO+ with only a part of current BRICS and it’s still less.
Yeah, numbers from 2012 are useless. Chinas GDP has more than doubled since then.