The line charts illustrates the amount of parcels delivered by two major mail services companies, categorizing them as Federal Express anc TNT Services between 1920 and 2000.
As an overall trend, it is clear that the parcels delivered by federal express on the early period experienced the fluctuated trend and recovered steadily until the end of the period, meanwhile, there was an upward trend in TNT Mail Services throughout the period.
In 1920, the parcels sent by Federall Express stood at 5.000 parcels, then dramatically increased to nearly 25.000 parcels in 1930, before plummet to approximately 12.500 parcels in 1950. Afterward, this trend gradually increased until 2000. Regarding the TNT Services, it begin at slightly over 5.000 parcels, then gradually rising until 1980, and significantly growth to nearly 25.000 parcels until the end of the period.