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Descriptive statistics – age distribution of 1996 population vs pooled population (2008–2011)
| Year | n | Mean age (years) | 95% confidence interval of the mean age | Median age (years) | SD |
|---|---|---|---|---|---|
| 1996 | 840 | 2.70 | 2.47–2.92 | 1.00 | 3.35 |
| 2008–2011 | 444 | 3.02 | 2.66–3.37 | 1.00 | 3.80 |
