With apologies to Sesame Street Wall Street’s activity this week has been brought to you by the number 84. Dow Industrials (^DJI) advanced 84.79 points yesterday an in a week when Dell Inc. (DELL) — founded in that Orwellian annum — has been on a real hot streak.   Alas our GDP gains of 7.2% that year won’t return any time soon but Beijing just reported its own economic growth rose 7.9% which was good enough to send the bulls shopping at China Ceramics (CCCL). It surged 14.19% although Bank of America’s (BAC) Merrill Lynch unit may no longer be quite so “bullish on America” after ...