Let's take a look at the line graphs. The death toll of swine flu in Mexico was about 2 on 25th April. It’s rose slightly to 7,on next day. The number of sharply to 33%,on next day.The number of rapidly to 50% on the roket following day quickly to 80%,on next day.The number of huge to 90%,on 1th May.It almost increase to 91%.
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