Table 5
Revision summary statistics, quarterly real gross domestic product growth rate
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| 1981 to 1990 | 1991 to 2000 | 2001 to 2007 | 1981 to 2007 | |
|---|---|---|---|---|
| Number of quarters | 40 | 40 | 28 | 108 |
| percentage points | ||||
| Range of revisions | ||||
|
Minimum value
|
-1.47 | -0.93 | -0.47 | -1.47 |
|
Maximum value
|
0.93 | 0.75 | 0.37 | 0.93 |
| Range that 90% of revisions lie within | ||||
|
Minimum value
|
-0.94 | -0.55 | -0.40 | -0.42 |
|
Maximum value
|
0.89 | 0.57 | 0.36 | 0.54 |
| Median revision (median bias) | 0.14 | 0.10 | 0.03 | 0.09 |
| Mean revision (mean bias) | 0.06 | 0.07 | 0.01 | 0.05 |
| Variance | 0.29 | 0.14 | 0.06 | 0.17 |
| Standard deviation of revisions | 0.54 | 0.37 | 0.24 | 0.41 |
| Mean absolute revision (mean dispersion) | 0.42 | 0.31 | 0.20 | 0.32 |
| percentage points | ||||
| Share of negative revisions | 40.0 | 40.0 | 46.4 | 41.7 |
| Relative bias (mean revision divided by mean absolute growth rate) | 6.0 | 8.4 | 1.7 | 6.1 |
| Relative dispersion (mean absolute revision divided by mean absolute growth rate) | 40.5 | 35.5 | 30.7 | 36.8 |
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