Food retailers are going well including Tesco, which is distributing £98m in shares among its workers.The details emerged as the group published its 2008/2009 annual report, which also revealed that top bosses picked up £22.2m in salary and bonuses.More than 200,000 workers - from checkout staff to floor managers- who have worked with the supermarket for at least a year will be eligible for the free shares, which will be 3.6% of salary and up to a maximum of £3,000. Sainsbury's and Morrisons are also higher. The mining sector started the day well after Rio Tinto announced a 33% cut in contract fine iron ore prices with Japan's Nippon Steel Corp for the current shipping year, but has since slipped into the red. Rio is joined lower by Kazakhmys, Xstrata, Anglo American and BHP Billiton.Top performing sectors so far todayTobacco 20,696.48 +1.56%Mobile Telecommunications 2,691.10 +1.30%Health Care Equipment & Services 2,492.42 +1.17%Food & Drug Retailers 4,100.67 +1.08%Forestry & Paper 2,119.26 +0.25%Bottom performing sectors so far todayAutomobiles & Parts 1,854.19 -6.75%Life Insurance 2,889.62 -3.77%Mining 13,790.23 -3.55%Industrial Engineering 2,623.36 -3.12%Technology Hardware & Equipment 239.87 -2.76%