Bar chart

Question 1

как назвать период

Answer 1

over a thirty-five-year(<=no s-ending!) period from 1980 to 2015.

Question 2

overall bar chart

Answer 2

the most dramatic changes occurred in figures related to
had an upward trend
remained unchanged.

Question 3

повышение

Answer 3

increase, rise, drop,

Question 4

большое изменение

Answer 4

high values, biggest increase, biggest majority, major trends, notable exception, a significant proportion

Question 5

низкие значения

Answer 5

low values

Question 6

неизменяемое значение

Answer 6

unchanging data

Question 7

body par 2

Answer 7

Turning to the numbers that experienced no rapid changes

Question 8

body par 1

Answer 8

Regarding the data which changed most dramatically
Regarding the indicators which experienced a significant rise

Question 9

Decline

Answer 9

Медленное убывание