SELECT SUM(years_played) FROM table_name_28 WHERE singles_win_loss = "4-9" AND first_year_played < 1999
Berapa tahun tim yang memiliki single-loss 4-9 dan pertama kali bermain sebelum 1999?
CREATE TABLE table_name_28 (years_played INTEGER, singles_win_loss VARCHAR, first_year_played VARCHAR)