Wine Review analysis

（1） Read file data , Output a list of non duplicate country names , The alphabet is arranged in ascending order

（2） Calculate the average score of each country's wine

（3） Average ranking , Descending order from high to low

（4） Top ten wines

（5） The most expensive 20 This wine

（6） The number of wines in each score

（7） Output the score and quantity with the largest number of wines

（8） Output the average price of the wine with the largest number of scores

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The compressed package contains ： Raw data 、 The code of the above eight questions 、 Code pdf file