The U.S. dollar has suffered its worst start to the year in over five decades, according to a new report.
The dollar index, which measures the strength of the U.S. currency against other global currencies, has fallen more than 10 percent in the first six months of the year, the Financial Times reported. The currencies measured against the dollar are the Euro, Japanese Yen, British Pound, Canadian Dollar, Swedish Krona and Swiss Franc.