CREATE TABLE table_name_73 (down__up_to_kbit_s_ INTEGER, provider VARCHAR, up__up_to_kbit_s_ VARCHAR)
What is the average down (up to kbit/s) when the provider is willy.tel and the up (kbit/s) is more than 1984?
SELECT AVG(down__up_to_kbit_s_) FROM table_name_73 WHERE provider = "willy.tel" AND up__up_to_kbit_s_ > 1984