The document consists mainly of a sequence of data points across various years from 1960 to 2020, indicating trends or changes over time. It also includes a code snippet for opening a file named 'file.txt' in read and write mode. The overall content emphasizes the collection and handling of data.

4. 1960

5. 1980

6. 2000

7. 2010

8. NOW

9. 2020

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37. ​
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38. RESOURCE FILE
CONTENTS

39. fopen(
‘file.txt’, ‘r+’
);
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