Return to Downtown Pittsburgh

8.2

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1999

7

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2002

8

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2004

7.3

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1996

7.5

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2017

10

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2001

6

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1980

7

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1990

0

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2020

0

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1999

0

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NaN

0

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2008

0

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2015

0

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2015

0

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2012

0

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NaN

0

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2001

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2010

0

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1988

0

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1991