Birth rates and death rates together determine the population of a country. A country or region’s birth rate is calculated by considering the number of live births per 1000 population with respect to the time period measured in years. The birth rate is called natality and has a lot to do with demonstrating a country’s present development scenario and future.
According to the World Health Organisation, countries should know their birth rate and death rate to have well functioning. Knowing birth rate using statistics is better as compared to censuses because the demographic birth rate is taken every 10 years, thus they’re not the best source of data for birth rate. In contrast, accurate online statistics services like birth clocks are the closest possible to live updates on births recorded around the world.
This gives real-time updates on the increasing population of the world, helps you understand which current phenomena are impacting live birth rates, help you predict and prevent similar situations in the future. For instance, a gas leak tragedy in an area can lead to several mortal births of babies, and if this is noted in time, a system of better measures can be put into practice. When compared to the population, birth rates statistics also help us determine how sound the medical and healthcare facilities of different regions are.
The global birth rate in 2016 was calculated to be 18.5 births per 1000 total population whereas the death rate was calculated to be 7.8 per 1,000. The resulting RNI (Rate of Natural Increase) was thus 1.6 percent. The 2016 global birth demographics indicated that approximately 4 babies were born every second or about 256 births in a minute! Despite the good looking figures, a comparison to the statistics of 2012 and 2007 reveals that the birth rate had gone significantly lower by over 1 point in the decade.
A higher birth rate indicates a healthy country, however, it can have a negative impact on an already bustling population struggling to survive under limited resources. For instance, in developing countries, children are forced to illegally do laborious jobs or resort to street begging because the families on the lower side of the income graphs are not able to support their children. In these countries, birth rates are higher due to the lack of access to contraceptives, sex education, and family planning.
In 2020, the birth rate of the United States was recorded to be 11.990 births per 1000 people; slightly higher than that in 2019 but significantly lower than that of 2016.
This birth rate is also known as the crude birth rate or CBR. The formula for calculating CBR is the same as we discussed above. It's the total number of live births per 1,000 person of the population, divided by the number of years.
The formula for calculating CBR for yearly estimation is-
Number of births x 1,000 / mid-year estimated live population of USA
So, if we have 600 births in a year, and the country had a population of 105,000, then the CBR is-
600 x 1,000 / 105000 = 5.7 per 1,000 population.
Difference of CBR with Other Measures
US population clock or CBR doesn't consider any age-specific demographics or factors. As a result, it is different from age-specific measures like fertility rates that also look at the number of births.
For example, the general fertility rate or GFR, is the measure of live births per 1,000 persons, especially women. In 2018, USA had a GFR of 59 for women aged between 15 - 44-years, according to Pew Research.
We have similar measures like total fertility rate and total fertility that give a sense of birth rates. Total fertility rate or TFR is the hypothetical measure of the number of children an American woman will have in her lifetime. In 2018, the TFR in USA was 1.86, meaning the average US woman will have 1.86 births in her lifetime.
While these measures are different from CBR, we are witnessing an alignment in recent years. The alignment reflects the declining curve of the birth rate in USA for several causes. However, the matching numbers do show the statistical accuracy of measures like CBR for academic and practical uses.
The CBR is a simple measure that serves as a foundation for sound research. We generally need to dig deeper and consider a plethora of factors to uncover the real nuances of birth and death in any country.
Experts say that unfavorable economic conditions have played a huge part in the decline of the birth rates. One of the fundamental factors that impact the birth rate -- the fertility rate in the US -- has a lot to do with the economic conditions of the people. North Dakota had the lowest number of unemployed people and it showed a big increase in the birth rates at that time. All other states either showed the same result or had some decline in the birth rates. This trend is reasonable when we consider that parents have become more conscious about their financial stability before family planning.