The given line graphs provide data on how many parcels transported by FedEx and TNT services over the 80 years from 1920 to 2000.
It can be clearly seen that the FedEx service experienced a period of volatility over the period, while TNT increased and reached a peak over the eight decades from 1920 to 2000.
At the beginning of the period, the mail service of FedEx started to increase from 15000 in 1920 to around 18000 in 1930. Then, it reached its peak over two decades between 1920 and 1940. However, the quantity of parcels delivered by FedEx service witnessed a drop next two decades from around 24000 to just about 12000. By 1960, it started to rise and reached around 18500 in 1980 . Finally, the amount of parcels transported by FedEx mail service decreased slightly from 18500 to at least 18000 over the 20 years from 1980 to 2000.
However, the number of parcels delivered by TNT mail service experienced an increase whole the period from 1920 to 2000. It increased from 5000 in 1920 to about 12000 in 1960, although it witnessed a slide from 1960 to 1970. Then, it began to grow from about 10500 in 1970 to 11000 in 1980. Next, the service of TNT noticed a growth rapidly from 11000 in 1980 to around 23000 in 1990 and it reached its peak in 2000. Compared to FedEx, TNT rised whole the period.
