In December, total industry sales dropped by 21% to $3.99 billion compared to last December's $5.07 billion. Hardware was down 28% and software dipped by 14%. This certainly didn't help the year-end total for 2011, which came to $17.02 billion, down 8% from 2010's $18.59 billion. For the full year, hardware and accessories were each down 11% and software declined six percent.