The line graphs elucidate the number of mobile phones made in the world by 2 major companies, namely Samsung and Nokia over 8 years period between 2012 and 2020.
Overall, what stands out is that there were considerably upward brands in the made of Samsung and Nokia. Another interesting point is that Samsung was the most popular brand in 2016. But in 2018, Nokia was levelled off in the last two years.
Looking at the details, as regards Samsung. Making started at roughly 400 in 2012.
The world's demand for Samsung branded telephones doubled rose from 300 to 500. Then there was a fluctuation over the next four years, at which point it levelled off at just under 600 from 2018 till 2020. The number of cell phones sold by Samsung was the highest over the projected periods.
It can be observed that the mobile phones for Nokia had reserve trand, although the phones sold at almost 400 in the same years as Samsung. Nokia was went down gradually from 400 till 270 in 2014. Having remained stable at almost 300 till 2017. Make then rose sharply, reaching nearly 550 in 2019. From that year, the figure of Nokia's phones were levelled of till in the end of year. 
The line graphs elucidate the number of mobile  
phones
 made in the world by 2 major  
companies
,  
namely
 Samsung and Nokia over 8 years period between 2012 and 2020. 
Overall
, what stands out is that there were  
considerably
 upward brands in the made of Samsung and Nokia. Another interesting point is that Samsung was the most popular brand in 2016.  
But
 in 2018, Nokia  
was levelled
 off in the last two years.
Looking at the  
details
, as regards Samsung. Making  
started
 at roughly 400 in 2012.
The world's demand for Samsung branded telephones doubled rose from 300 to 500. Then there was a fluctuation over the  
next
 four years, at which point it levelled off at  
just
 under 600  
from 2018 till 2020
. The number of cell  
phones
 sold by Samsung was the highest over the projected periods.
It can  
be observed
 that the mobile  
phones
 for Nokia had reserve  
trand
, although the  
phones
 sold at almost 400 in the same years as Samsung. Nokia was  
went
 down  
gradually
  from 400 till 270
 in 2014. Having remained stable at almost 300 till 2017.  
Make
 then rose  
sharply
, reaching  
nearly
 550 in 2019. From that  
year
, the figure of Nokia's  
phones
  were levelled
 of till in the  
end
 of  
year
.