| 1 | A | B | C | D | E | F | G | H | I | J |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 2 | intergenerational mobility estimates in pooled birth cohorts samples when child income is measured at lisa data collection date, by percentile calculation method |  |  |  |  |  |  |  |  |  |
| 3 |  | pooled cohorts |  | by single birth year |  | by cohort, 3-year groups |  | residualized on age |  | number |
| 4 |  | mean | sd | mean | sd | mean | sd | mean | sd |  |
| 5 | 1963 to 1974 birth cohorts |  |  |  |  |  |  |  |  |  |
| 6 | employment income |  |  |  |  |  |  |  |  |  |
| 7 | child individual income | 40.99 | 0.19 | 40.58 | 0.19 | 40.60 | 0.19 | 40.46 | 0.20 | 2,272.00 |
| 8 | child and spouse income, unadjusted | 39.85 | 0.21 | 39.20 | 0.21 | 39.31 | 0.22 | 39.37 | 0.22 | .. |
| 9 | total income |  |  |  |  |  |  |  |  |  |
| 10 | child individual income | 38.62 | 0.23 | 38.59 | 0.23 | 38.55 | 0.23 | 38.07 | 0.25 | 2,473.00 |
| 11 | child and spouse income, unadjusted | 36.75 | 0.27 | 36.54 | 0.27 | 36.54 | 0.27 | 36.38 | 0.28 | .. |
| 12 | 1963 to 1979 birth cohorts |  |  |  |  |  |  |  |  |  |
| 13 | employment income |  |  |  |  |  |  |  |  |  |
| 14 | child individual income | 41.23 | 0.18 | 40.45 | 0.19 | 40.69 | 0.19 | 40.71 | 0.19 | 2,995.00 |
| 15 | child and spouse income, unadjusted | 39.25 | 0.22 | 37.98 | 0.23 | 38.41 | 0.23 | 38.63 | 0.23 | .. |
| 16 | total income |  |  |  |  |  |  |  |  |  |
| 17 | child individual income | 39.73 | 0.21 | 39.38 | 0.21 | 39.44 | 0.21 | 39.07 | 0.23 | 3,244.00 |
| 18 | child and spouse income, unadjusted | 37.33 | 0.26 | 36.63 | 0.26 | 36.80 | 0.27 | 36.74 | 0.27 | .. |
| 19 | 1963 to 1984 birth cohorts |  |  |  |  |  |  |  |  |  |
| 20 | employment income |  |  |  |  |  |  |  |  |  |
| 21 | child individual income | 42.46 | 0.16 | 40.85 | 0.18 | 41.11 | 0.18 | 40.90 | 0.19 | 3,753.00 |
| 22 | child and spouse income, unadjusted | 40.82 | 0.19 | 38.48 | 0.22 | 38.96 | 0.22 | 38.98 | 0.23 | .. |
| 23 | total income |  |  |  |  |  |  |  |  |  |
| 24 | child individual income | 40.74 | 0.19 | 39.53 | 0.21 | 39.70 | 0.21 | 39.27 | 0.22 | 4,043.00 |
| 25 | child and spouse income, unadjusted | 39.01 | 0.23 | 37.29 | 0.25 | 37.60 | 0.25 | 37.44 | 0.26 | .. |

Question: how many times the sample size of the 1963-1984 cohorts is that of the 1963-1974 cohorts when using total income?
Answer: 1.634856