Help appreciated on this one.

You are shown a set of statements below. You have to use the data in these statements to find
the answer and fill in the blank. Not all the data may be relevant or needed. Round decimal
answers to the next whole number.

________________ million people are online at any hour.


I. Browsing is done only 12 hours a day on average across the world.
2. There is no overlap between the people Who browse and Who check their emails.
3. internet usage is growing at a rate of 5 million users per month.
4. At any hour on the given day, for half of the world, it is day and for the other half, it is night.
5. People use the internet for email and browsing only.
6. Browser volumes are 500 clicks a second.
7. Google gets a billion hits a day.
8. 60% Of the people Who use the internet use it for browsing.
9. Facebook has I. I billion users worldwide.
10. Email accessed by the users evenly distributed across the 24 hours in the day.
11. The population of the world is 7 billion.
12.30% of the population uses the internet.
13. On average in the day time, 500 million people access the internet every day last year.
14. At night, the people accessing the internet are 80% less than those accessing it in the day time.

Here's my working: