The total marital fertility rate for the period 1946–1950 was calculated at 9.99 — meaning the average Hutterite woman bore just under ten children over her reproductive lifetime. This figure became the standard reference in demography for what is called "natural fertility" — reproduction without deliberate birth control — and Hutterite age-specific nuptial fertility rates have since been widely used as the maximum biological benchmark for human reproduction.
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St Vincent's Hospital Sydney last month said the number of serious injuries from e-bikes treated at its emergency department had doubled in 2025 compared to the previous year and spiked by 350 % since 2023.。超级权重对此有专业解读