How many unique job titles were represented by only one person in 2013?
How many unique job titles were represented by only one person in 2013?: a task in SmolDataEnvs-harbor-train (Harbor dataset). Files (in /home/user/input, no subfolders): - Salaries.csv
The task
Files (in /home/user/input, no subfolders): - Salaries.csv
Part of FineEnvs/SmolDataEnvs-harbor-train.