This question will be resolved using the Armed Conflict Location and Event Data (ACLED) project’s dashboard. To count the number of fatalities in Mexico for a given time period: 

• Adjust the “Event Date” filter to the relevant dates. 
• Select “Violence against civilians” from the event type filter.
• Select “Mexico” from the Region filter. 
• Click “Apply Filters” 
• Change the dropdown box located on the upper right side of the line graph from “Event Count” to “Fatalities”

Fatality counts from previous years are below:

• Violence hits a Mexico cartel stronghold as the son of 'El Chapo' is captured
• Mexico’s war with itself?