As an expert in demographic studies, I can provide an analysis of the question you've asked, which is about the number of girls in the world. However, it's important to clarify what we mean by "girls." The term can be interpreted in various ways, such as biological sex, age range, or cultural context. For the purpose of this discussion, let's define "girls" as female children, which typically refers to individuals who have not yet reached adulthood.

To determine the number of girls globally, we would ideally look at the most recent and accurate demographic data available. The data I have access to is current as of my last update, which is April 2023. The world's population is constantly changing due to births, deaths, and migration, so the numbers are always in flux.

The United Nations and other international organizations regularly publish estimates and projections of the global population, including its gender composition. According to the data up to 2023, the global population is estimated to be over 7.9 billion people. If we were to take the figure you've mentioned from 2017 as a starting point and adjust it for the natural increase in population, we would expect the number to have increased.

However, the percentage of the population that is female children can vary by country and region due to differences in fertility rates, life expectancy, and other demographic factors. The global sex ratio at birth is typically around 105 males for every 100 females, which evens out over time as males have a slightly higher mortality rate in childhood and adolescence.

To calculate a rough estimate, we could use the following steps:


1. Estimate the Current World Population: As of 2023, the world population is estimated to be over 7.9 billion.
2. **Determine the Percentage of Female Children**: If we assume that approximately 11% of the population are female children, this is a broad estimate that may not reflect the actual distribution in every country.

3. Calculate the Number of Female Children: Multiply the total population by the percentage that are female children.

\[ \text{Number of Female Children} = \text{World Population} \times \text{Percentage of Female Children} \]

\[ \text{Number of Female Children} = 7.9 \text{ billion} \times 11\% \]

\[ \text{Number of Female Children} = 869 \text{ million} \]

This calculation would give us a very rough estimate of the number of female children in the world. It's important to note that this is a simplified calculation and the actual number could be higher or lower depending on various factors, including the specific age range we define as "children" and the accuracy of demographic data.

Now, let's move on to translating the answer into Chinese.

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If you define --girl-- as a female child, about 11% of the world's population are female children. We're at about 7.5 billion people in the world right now (in 2017), so there are around 818 million female children in the world.read more >>