Abstract
This survey is mainly based on the statistics of the World Happiness Index data on Kaggle, and the visualization of data produced by Tableau (“Tableau Software is an American intuitively information visualization computer program company centered on trade insights”) to analyze the data. Happiness index is an index value that measures and compares how much or how much happiness people get in a certain period of time. The population currently used in the world to measure is the nationals, which is the national happiness index. The National Happiness Index is an index that measures and compares how much or how much happiness people have achieved in a certain period of time. Generally speaking, the ultimate pursuit of mankind is happiness. Therefore, for the time being, the only important indicator that ultimately measures whether a country is progressing is the happiness index. If any democracy, freedom and scientific development deviate from this direction, there will be no progress, especially democracy, freedom and scientific development with GDP (Gross domestic product) as the core.
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