Conversation so far:
Who is Miss Saigon in relation to Lea Salonga?
In 1989 Lea Salonga was selected to play Kim in the debut production of the musical Miss Saigon in London.
How long did Lea Salonga protray Kim in the debut production of the musical Miss Saigon in London?
1989-1999
Are there any other interesting aspects about this Lea Salonga article besides playing Kim in the debut production of the musical Miss Saigon in London?
For her performance as Kim, Lea Salonga won the 1990 Laurence Olivier Award for Best Performance by an Actress in a Musical.
Did Lea Salonga win any other award besides the 1990 Laurence Olivier Award for Best Performance by an Actress in a Musical?
the Drama Desk, Outer Critics Circle and Theatre World Awards and Tony Award.

Question: When was she awarded these awards?
Self-contained rewrite: When was Lea Salonga awarded the Drama Desk, Outer Critics Circle, Theatre World and Tony Awards?