The fertility rate has risen to 1.66, still below the replacement level but higher than the national average.
It is now at almost two children per woman, just below the replacement level of 2.1, and looks set to rise further.
The total fertility rate had been 5.8 in 1950, he notes, and had declined sharply to 2.3 by 1980, just above replacement level.
France and most of the Nordic countries have embraced such policies and been rewarded with a rise in fertility close to replacement level.
In China and most of the industrialised world, births and deaths are at or below replacement level (though America's population still rises because of immigration).
At the same time, the fertility rate (the number of children an average woman will have in a lifetime) is now 1.39, well below the replacement level.
As an exercise, assume that Granderson and Teixeira, if healthy, would play at their established level in April, and that their substitutes will play at the theoretical replacement level.
The odd ones out are America and Britain, which both have lots of women at work and fertility rates close to replacement level (with immigration making up the rest).
Mexican families have fewer mouths to feed as the country's birthrate has declined to near replacement level, or about 2.1, akin to that in the U.S., meaning Mexicans feel under less pressure to move north to find work.
The reason is that widening replacement-level fertility means population growth is slowing down anyway.
ECONOMIST: Lower fertility is changing the world for the better
Like calcium, most physicians check it routinely and will obtain dietary counseling for moderately low levels or prescribe replacement if the level is very low.
But then Cushendall got level with late replacement McNaughton's goal in the 22nd minute.
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We estimate that a relatively low level of disparity in replacement rates will result in smaller market-share shifts in the future.
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Some England players, without naming names, have talked about the need for Eriksson's replacement to have experience of the highest level of football club management.
BBC: SPORT | Football | Internationals | Who is going to get Sven's job?
Meanwhile, Australia's injury-ravaged squad in India has called up 26-year-old Victorian bowler Clinton McKay , uncapped at senior international level, as a direct replacement for Lee.
The Department for Children, Schools and Families is piloting a possible replacement in the form of "single level tests" that children would take to confirm their teachers' assessment that they had reached a higher national curriculum attainment level.
Striker Kenwyne Jones was forced off at half-time for Sunderland after injuring his wrist when painfully blocking a Gilberto shot and his replacement O'Donovan almost put his side level when play resumed.
But tries from centre Eric Artiguste and replacement prop Leonie Tzabatze brought the side back on level terms with Pau.
Still, because the current level is far below the level of 2.07 required to prevent population replacement, the result is net decline.
An opener at first-class level, Hussey was called into the Test side as an injury replacement for Justin Langer.
BBC: SPORT | Cricket | International Teams | Australia | Hussey hopes for happy homecoming
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