For each year from 2011 through 2015, the graph shows the number of employees of a certain company during that year, together with the total amount paid by the company in compensation to its employees during that year.

Select from each drop-down menu the option that completes the statement so that it has the most support from the information provided.

The year in which the average (arithmetic mean) annual compensation per employee was GREATEST was {【下拉选项标识】}

The year in which the average (arithmetic mean) annual compensation per employee was LEAST was {【下拉选项标识】}