CREATE TABLE table_name_16 (agricultural_panel NUMBER, national_university_of_ireland NUMBER)

What is the average for the agricultural panel that has a National University of Ireland less than 0?
SELECT AVG(agricultural_panel) FROM table_name_16 WHERE national_university_of_ireland < 0
SELECT AVG("agricultural_panel") FROM "table_name_16" WHERE "national_university_of_ireland" < 0