Preterit vs Present Perfect

The US automobile industry (suffer) two oil crises in the 1970s.

Since then, this sector of the US economy constantly (struggle) to keep up.

Claudia Perkins (move) to Detroit in 1950s with her parents.

In 1950, the Perkins quickly (find) a job at the Ford factory.

I am impressed at the way Detroit (rise) from its ashes since this damaging period.

In 2014, the financial institution JPMORGAN Chase (announce) a $100 million investment.