If an imaginary country called Perfection has the following statistics related to the Age Specific Fertility Rate, calculate the Total Fertility Rate (TFR) of the country.
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age group ASFR
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15-19 50
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20-24 148
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25-29 200
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30-34 170
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35-39 135
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40-44 45
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45-49 30
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total 778​