The diagram below gives information about the number of parcels delivered by two major mail services companies from 1920 to 2000

The line graph illustrates the alterate of parcels number delivered by two leading mail services, FedEx and TNT over a-80-years period between 1920 to 2000.

Overall, while the two companies display the wide enough gap at the beginning of the period, they narrowed in the middle of the period, which was in 1960. Interestingly, the gap widened again before finally crossing over in 1990. while several parcels organized by TNT increased constantly, FedEx saw a fluctuation over the period.
As per information, in 1920, FedEx stood at 15000 packages token and saw considerably increase to about 17500 in 1930. After a short break in 1940, almost reach 25000, a tremendous decrease to 12000 for 10 years later. On the other hand, a gradual rise of TNT delivered consistency until 1960, at 11000. The was following by a wide gap trend between them. finally, in 1990, TNT crossed over FedEx successfully in term of number parcels delivered organized. This place was consistently showed until the end of the period.