Marathon year rankings

Columns: Year | Time | Athlete | Date | Place
1987 | 2:22:48 | Ingrid Kristiansen ( NOR ) | 1987-05-10 | London , UK | 1988 | 2:23:51 | Lisa Martin ( AUS ) | 1988-01-31 | Osaka , Japan | 1989 | 2:24:33 | Ingrid Kristiansen ( NOR ) | 1989-04-17 | Boston , United States | 1990 | 2:25:24 | Rosa Mota ( POR ) | 1990-04-16 | Boston , United States | 1991 | 2:24:18 | Wanda Panfil ( POL ) | 1991-04-15 | Boston , United States | 1992 | 2:23:43 | Olga Markova ( RUS ) | 1992-04-20 | Boston , United States | 1993 | 2:24:07 | Wang Junxia ( CHN ) | 1993-04-04 | Tianjin , PR China

Example questions:
What continent is the person with the fastest marathon time from ? | As of 2010 , how many people lived in the place where the 1983 marathon race took place ? | What is the nationality of the earliest athlete to win the Marathon world rankings ? | What is the official name of the state in which the second marathon race took place ?

Answers:
Africa | 156,185 | British | Commonwealth of Massachusetts