She explains that the strategy did not work as predicted because of what's called a population level effect.

VOA: standard.2010.03.22

"If people are not able to enhance their skills in various medical specialties, therefore they cannot provide the high level of health care and services that the population needs."

VOA: standard.2010.06.01

"When you can't say for sure whether all the women in the advance provision group actually used the medication, then you're kind of looking at population level effect of a strategy, not the individual effect of a medication."

VOA: standard.2010.03.22

The General Register Office for Scotland (GROS) said that while the population has fallen, Scotland's share of the UK population has not declined below the level of recent estimates.

BBC: Scotland's population falling

The latest statistics offer a more detailed snapshot of the population in 2011 and a new level of geographical detail relating to the characteristics of those living in England and Wales.

BBC: 138,000 speak no English - census

Mr Gardner reminds us that the growth of the population has been far outstripping the hopelessly inadequate level of new house building, while the number of people in employment has been rising.

BBC: Is the mortgage freeze about to thaw?