The data set was provided by The Meteoritical Society, an organization that has been documenting meteorites since 1933. The data set contained the name of each meteorite, the weight and the year when it fell or was found as well as its coordinates. The amount of registered meteorites was very few before 1974. The reason for the increase was that during this time scientists started to discover meteorites in the deserts of the Earth which eventually led to more meteorites being registered.

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