1991 10.483261 0.095390 4% Est. 1997 0.730690 1.368569 4% Est. 2004 1.216653 0.821927 4% Est. 1989 4.144700 0.241272 3.8744% 1988 0.494225 2.023370 3.3218% 1987 9.317220 0.107328 3.1640% 1986 0.521561 1.917323 2.6144% 1985 3.589001 0.278629