The number of American filing initial jobless benefits last week rocketed due to a backlog in California, caused by a switch in computer systems, while partial federal shutdown has become a major drag on the labour market as well. According to the report, jobless claims surged by 66,000, the most since Superstorm Sandy in November 2010, hitting 374,000 in the week ended October 5. This level strongly exceeds the average forecast made by analysts, who expected a figure of 307,000, 1,000 less than a week earlier. At the same time, continuing claims dropped by 16,000 to 2,905,000.