SELECT concat(e.first_name, ' ', e.last_name) AS name,
concat(count(r.open_date), '/', count(r.close_date)) AS closed_open_reports
FROM employees AS e
JOIN reports AS r ON e.id = r.employee_id
WHERE year(r.open_date) >= 2016 AND count(r.open_date) > 0 AND count(r.close_date) > 0
ORDER BY name;