These two charts illustrate the number of honey-bee colonies and the weight of honey crops in the US in four decades between 1970 and 2010.
In 1970, the entire honey-bee colonies had been 4 million. Subsequently, in 1980, there was a slight boost. It went up to around 4. 1 million, which also had been the highest statistic in the period. After that, during a gradual decline (from 3. 5 million in 1990 to approximately 2. 6 in 2000), it reached about 1. 8 million, the lowest number in this duration.
During the same period, the output of honey-bee colonies was 130. 000 tonnes in 1970, which was the highest amount, and in 1980, it dropped to 110. 000 tonnes. Unlike the downward trend, the crop rose to 120. 000 tonnes in 1990. However, in 2000, the amount began descending again, and the production fell to 110. 000 tonnes, then in 2010, it collapsed to the lowest amount, which is 70. 000 tonnes.
Overall, although there had been a partial soar in the number of colonies in 1980, the honey output went down in that year. However, both charts similarly have a significant downtrend over the period so that subjects could be correlated.
These two charts illustrate the number of honey-bee
colonies
and the weight of honey crops in the US in four decades between 1970 and 2010.
In 1970, the entire honey-bee
colonies
had been 4
million
.
Subsequently
, in 1980, there was a slight boost. It went up to around 4. 1
million
, which
also
had been the highest statistic in the period. After that, during a gradual decline (from 3. 5
million
in 1990 to approximately 2. 6 in 2000), it reached about 1. 8
million
, the lowest number in this duration.
During the same period, the output of honey-bee
colonies
was 130. 000 tonnes in 1970, which was the highest amount, and in 1980, it dropped to 110. 000 tonnes. Unlike the downward trend, the crop rose to 120. 000 tonnes in 1990.
However
, in 2000, the amount began descending again, and the production fell to 110. 000 tonnes, then in 2010, it collapsed to the lowest amount, which is 70. 000 tonnes.
Overall
, although there had been a partial soar in the number of
colonies
in 1980, the honey output went down in that year.
However
, both charts
similarly
have a significant downtrend over the period
so
that subjects could
be correlated
.