Mark the only alternative that correctly expresses what the statistics refer to.
... 40% of people... (line 6) percentage of people who feel uncomfortable traveling by plane.
more than 3 million people... (line 11) number of people who fly per year.
more than one billion people... (line 13) amount of people who died in plane crashes.
... 20 fatal accidents. (line 14) quantity of aviation accidents in the US in the last 60 years.
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