The given bar graph demonstrates the population of seal,whale and dolphin year between 2006 and 2018 having each four year gap. Overall, in 2018 the population of these animals have greatest than past few years.
In 2006, the number of seals has 42 and sharply decreased in 2010 after this year population of seals steadily increased. In terms of whale from 2006 to 2010 has consistent number of whales and slightly decreased at the end of 2014 and again soared in 2018. The population of dolphins has lowest in 2006 and now, dolphins has highest number among others. At the end of 2018, the population of seals, whales and dolphins has 44,28 and 51 respectively.
The population of these mammals has increased from past few years which has dolphins plummet than other two. The population of whale and seal has ups and downs between this year but last number of both had been increased.
