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6.7
Electricity titans Thomas Edison and George Westinghouse compete to create a sustainable system and market it to the American people.
2017
6.9
2020
6.6
1988
6.8
2011
6.1
2021
2008
2018
6.3
2012
2019
7.4
2026
7.0
2000
1992
2022
6.4
2004
5.9
2003
2013
2002
5.8