The park service records the number of reported rattle snake sightings on Bald Mountain Trail and Camel Back Trail. The data gives rise to the following two bar graphs.

Rattlesnake Sightings on Bald Mountain Trail	Rattlesnake Sightings on Camel Back Trail
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Use the bar graphs to fill in the contingency table below.

Reported Rattle Snake Sightings

	Year
Trail	2016	2017	2018	Total
Bald Mountain
Camel Back
Total