Peak

Definition: Refers to the highest point in data. 

Example: “The unemployment rate peaked at 12% in 2015 before gradually declining in the following years.”

Reach a peak

Definition: Shows that data has hit the highest point. 

Example: “The sales figures reached a peak of 10,000 units in December.”

Hit a peak

Definition: Indicates that data has achieved its highest level. 

Example: “Tourism numbers hit a peak in August, with over 1 million visitors recorded.”