The new orders' index in the industrial sector fell 9.8 pct in March this year, compared with the same period in 2010, after an increase of 17.4 pct recorded in March 2010, Hellenic Statistical Authority said on Friday. The statistics service, in a report, attributed this development to a 26.2 pct decline in the domestic market index and a 14.1 pct increase in the external market index.