Teva Pharmaceutical Industries Ltd. was ranked the Israeli economy's leading company in 2006 in terms of trade volume according the Business Data Israel report of the 50 leading companies in the economy, taking the top spot the second straight year. Revenues at the 50 leading Israeli companies, who employ 290,000 people, rose 13.9 percent to NIS 407 billion in 2006 compared with the previous year. The aggregate pre-tax profit margin was 12.5%. The top 10 leading Israeli companies in 2006 were Teva, Bank Hapoalim, the Israel Electric Company, Israel Chemicals, Bank Leumi, Bazan Oil Refineries, Clalit Health Services, Dor Alon, Bezeq and Amdocs. The BDI ranking is compiled from quantitative variables including turnover, profitability, risk level, added value, financial stability, payments ethic, weighted management level and employment. Teva defended its top rank by far as revenue jumped 55 percent in 2006 over the previous year to NIS 37b., while employing a staff of 26,600. Bank Hapoalim with 13,263 workers moved up one spot to second place with a generated sales volume of NIS 13b., an increase of 6% over the previous year. The Israel Electric Company with 12,676 employees slipped to third place as sales revenues increased by just 5% to NIS 17b. In fourth place was Israel Chemicals, with a trade volume of NIS of 14b. and 9,307 workers. Bank Leumi remained steady taking the fifth place in the ranking with revenues of around NIS 10b. while employing 11,629 workers. Meanwhile, El Al Airlines Ltd. dropped from 13th place to 25th in the ranking, while Checkpoint Software Technologies Ltd. fell from 42nd place to 47th place. The biggest jumps in the ranking saw the Eurocom Group which was ranked 19 places higher in 2006 at number 41 and Supersol Ltd., which rose to number 20 from number 29 in the previous year, mainly due to the acquisition of the Clubmarket chains. Industry by industry analysis found that 40% of the top 50 companies were manufacturers, 12% were in trade and 14% were in services. The remainder included three infrastructure companies, the five leading banks, two building companies and the five largest insurance companies.