Further jump in US unemployment

severe deterioration - poważne pogorszenie
in line with something - zgodnie z czymś
Although showing a severe deterioration, the figures were in line with expectations.

to be forced - być zmuszonym
Meanwhile, the number of people forced to work part-time, but who would prefer to work full-time, rose 423,000 to nine million

Źródło: http://news.bbc.co.uk/2/hi/business/7981607.stm