May 18, 2012, Tokyo, Japan - Tokyo stocks drop sharply Friday morning, May 18, 2012, sinking to a four-month low amid signs of growing instability among Spanish banks and political turmoil in Greece. The Nikkei Stock Average declined 207.29 points, or 2.34%, to 8,669.30, dipping below the psychologically important 8,700 level and hitting its lowest level since Jan. 19 on an intraday basis. (Photo by Natsuki Sakai/AFLO) AYF -mis-