No, the various paraphrases of the reports on FR have claimed they were exactly 10 years old. Here's the original report:
BAGHDAD, Iraq (AP) -- Danish and Icelandic troops have uncovered a cache of 36 shells buried in the Iraqi desert, and preliminary tests showed they contained a liquid blister agent, the Danish military said Saturday.
The 120mm mortar shells were thought to be leftovers from the eight-year war between Iraq and neighboring Iran, which ended in 1988, said U.S. Brig. Gen. Mark Kimmitt.
The shells were found by Danish engineering troops and Icelandic de-miners near Al Quarnah, north of the city of Basra where Denmark's 410 troops are based, the Danish Army Operational Command said in a written statement.
The shells were wrapped in plastic but had been damaged, and they appeared to have been buried for at least 10 years, the statement said.