The line graphs illustrate the proportion of electrical products, such as washing machine, refrigerator and vacuum cleaner, which were owned by people in households. Moreover, the second figure gives the information about the hour usage for cleaning the house per week, both figures given the data in between 1920 to 2019.
Initially, the refrigerator was begun to be known in 1920, the usage started from 0% and rapidly went up to 90% in 40 years, then there was gradually rose to fully 100% in 1980 and maintained the same level toward 2019. Apparently, vacuum cleaner had been using since 1920 with 30% of users and continually increased to 90% in 2000 and became 100% in 2000, After that the same figure as refrigerator was observed.
However, the washing machine was not as popular as the first two machines. The graph started at 40% and steadily rose to 70% in 1960, it was slightly decreased to 65% in 1980. After that, the washing machine was going back to 70% and approximately 75% in 2000 and 2019, respectively.
The line graphs illustrate the proportion of electrical products, such as washing
machine
, refrigerator and vacuum cleaner, which were
owned
by
people
in households.
Moreover
, the second figure gives the information about the hour usage for cleaning the
house
per week, both figures
given
the data in
between 1920 to 2019
.
Initially
, the refrigerator
was begun
to
be known
in 1920, the usage
started
from 0% and
rapidly
went up to 90% in 40 years, then there was
gradually
rose to
fully
100% in 1980 and maintained the same level toward 2019.
Apparently
, vacuum cleaner had been using since 1920 with 30% of users and
continually
increased to 90% in 2000 and became 100% in 2000, After that the same figure as refrigerator
was observed
.
However
, the washing
machine
was not as popular as the
first
two
machines
. The graph
started
at 40% and
steadily
rose to 70% in 1960, it was
slightly
decreased to 65% in 1980. After that, the washing
machine
was going back to 70% and approximately 75% in 2000 and 2019,
respectively
.