** Shares of dry bulk shippers up 3-13 pct ** Baltic Exchange’s main sea freight index touches new high for the year, helped by stronger demand for bigger shipping vessels ** Capesize index rose 101 points, or 6.27 pct, to 1,712 points ** Shares of Star Bulk Carriers Corp rise 12.9 pct, DryShips Inc 10.8 pct, Navios Maritime Holdings Inc 7.4 pct ** Shares of Diana Shipping Inc rise 6.8 pct, Safe Bulkers Inc 4.8 pct, Scorpio Bulkers Inc 3.1 pct