(Olympia, WA)  --  The Washington State Patrol says it's seen an increase in people wanting to become state troopers.  The agency says a rise in salaries approved by the Legislature appears to have resulted in a shrinking number of troopers who are retiring or leaving to work for other law-enforcement agencies.  WSP officials tell the "News Tribune" the patrol currently has an historically large class of 55 cadets training to become troopers in April.  The Washington State Patrol currently loses fewer than three troopers per month, compared to an average of nine per month in 2015.