听力原文： A new report finds that tourism to New York City rose by six percent in 2007. An estimated 8.5 million visitors came from overseas, even as international travel to other American destinations declined. Victoria Cavaliere reports from VOA's New York Bureau that the weakened dollar made New York an appealing destination for many foreign tourists. A report released by New York City tourism officials this month found that a record number of visitors came to New York City in 2007. More than 46 million people vacationed in the 'Big Apple,' spending around ＄ 28 billion last year. Many foreign tourists chose to visit New York--the most expensive U. S. city--because the weakened dollar made hotels, food and entertainment more affordable. How many overseas visitors traveled to New York city in 2007?