Average number of people registered with Spanish Social Security system stands at 16,327,687 in August

03/09/2013. Trends in the number of people registered with the Social Security system last month (-99,069) are heavily influenced by the end of the summer season. Nonetheless, August 2013 was the best month of August in seven years. There has not been a lower decrease since August 2005. The system recorded the best year-on-year rate in thirteen months.