(Baby name popularity ranking) The popularity ranking of baby names from the years 1960s to 2010 are stored in files named babynameranking_1960s.txt, babynameranking_1970s.txt,., babynameranking_2010s.txt (See the attached zip file). Each file contains two hundred lines. Each line contains a ranking, a boy's name, a number for the boy's name, a girl's name, and a number for the girl's name. For example, the first two lines in the file babynameranking_2010s.txt are as follows:

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