Find an approximation of the sum of the series accurate to two decimal places. 
Definitions:
1980s
A decade characterized by significant cultural, political, and technological changes globally.
1990s
The decade spanning from January 1, 1990, to December 31, 1999, characterized by significant technological, cultural, and political changes.
Civic Engagement
The participation of individuals in activities that aim to address issues of public concern or contribute to the welfare of the community.
Time and Money Pressures
The stress and challenges faced when limited by financial resources and deadlines.
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