Table 6.—Annual Averages of Dispersion and Bias in Revisions in the Quarterly Changes in GDP

[Percentage points/1/]

Year Dispersion Bias
Advance to preliminary Preliminary to final Advance to final To third annual revision estimate from: Advance to preliminary Preliminary to final Advance to final To third annual revision estimate from:
Advance Preliminary Final Advance Preliminary Final
Current-dollar estimates
19780.50.61.02.11.91.9-0.5-0.2-0.7-2.0-1.6-1.4
1979.5.3.31.21.11.0-.4.1-.30.4.3
19801.0.5.8.71.11.3.3-.1.2-.3-.6-.5
19812.0.42.33.42.01.9-2.0-.2-2.3-3.1-1.0-.8
1982.7.7.31.81.31.7.7-.5.1.70.5
1983.5.2.72.42.01.8.30.3.5.2.2
1984.7.41.01.61.81.7-.4-.3-.6.1.5.7
1985.4.4.8.81.21.6.4.4.8-.8-1.2-1.6
1986.5.2.41.31.51.60.2.2-.4-.3-.5
1987.6.4.81.2.6.8-.60-.6-1.2-.6-.6
1988.7.2.91.4.7.5-.7-.2-.9-1.4-.7-.5
1989.6.4.81.31.31.30.3.3.6.7.4
1990.2.4.6.2.4.6
1991.4.3.40.2.2
1992.9.2.9-.9-.1-.9
Constant-dollar estimates
1978.2.5.72.42.32.0-.2-.2-.4-1.4-1.2-1.0
1979.8.2.61.0.8.8-.6.1-.5-.5.10
1980.5.7.7.5.5.8.3-.30-.2-.5-.2
19811.0.31.22.01.31.1-1.0-.2-1.2-1.8-.8-.6
1982.6.6.22.41.82.4.3-.5-.21.0.81.2
1983.4.4.71.51.41.10-.1-.1-.3-.3-.2
1984.7.41.01.51.81.8-.3-.1-.4.2.5.6
1985.7.5.71.51.72.1.2.5.6-1.5-1.7-2.1
1986.4.4.22.12.12.30.1.100-.1
1987.3.3.31.21.11.3-.1-.1-.2-1.2-1.0-.9
1988.5.1.6.91.21.3-.50-.5-.9-.4-.4
1989.6.2.71.71.61.60001.11.11.0
1990.3.3.6.3.3.6
1991.5.3.5.1.3.4
1992.7.3.6-.7.1-.6

1. Calculated from quarterly percentage changes at seasonally adjusted annual rates.

NOTE.—Because the annual revisions in 1985 and 1991 were replaced by comprehensive revisions, estimates from the 1985 comprehensive revision served as third annual revision estimates for 1982, and estimates from the 1991 comprehensive revision served as third annual revision estimates for 1988. Because the 1981 annual revision was postponed and combined with the 1982 annual revision, the 1982 annual revision provided the third annual revision estimates for 1978.