Connecticut was among 16 states that saw record levels of exports last year, with the sale of aerospace and related equipment accounting for nearly half of the $16.5 billion in exports, a report released Tuesday shows. Exporting for the nation as a whole in 2013 also rose to a record, $2.3 trillion. In Connecticut, the level of exports rose by 3 percent, from $16 billion in 2012, and was 7 percent higher than $15.4 billion in 2008, according to the U.S. Department of Commerce. "I'm not surprised," said Peter Gioia, vice president and economist at the Connecticut Business & Industry Association. "Companies involved in exporting are getting more and more aggressive."