Table: ukraine_fed_cup_players
Columns: player
total_win_loss
singles_win_loss
doubles_win_loss
no_of_ties
first_year_played
years_played

Question: How many years did the team that has a Singles win-Loss of 4-9 and first played before 1999?
SQL: SELECT SUM("years_played") FROM ukraine_fed_cup_players WHERE "singles_win_loss" = '4-9' AND "first_year_played" < 1999