Given below in the table is the decadal data of Population and Electrical Power Production of a country.

 Year Population (million) Electrical Power Production (GW)* 1951 20 10 1961 21 20 1971 24 25 1981 27 40 1991 30 50 2001 32 80 2011 35 100 * 1 GW = 1000 million watt

Based on the above table, answer the following questions:

1. Which decade registered the maximum growth rate (%) of population?
(A) 1961-71
(B) 1971-81
(B) 1991-2001
(D) 2001-2011

2. Average decadal growth rate (%) of population is:
(A) ~12.21%
(B) ~9.82%
(C) ~6.73%
(D) ~5%

3. Based on the average decadal growth rate, what will be the population in the year 2021?
(A) 40.34 million
(B) 38.49 million
(C) 37.28 million
(D) 36.62 million

4. In the year 1951, what was the power availability per person?
(A) 100 W
(B) 200 W
(C) 400 W
(D) 500 W

5. In which decade, the average power availability per person was maximum?
(A) 1981-1991
(B) 1991-2001
(C) 2001-2011
(D) 1971-1981

6. By what percentage (%) the power production increased from 1951 o 2011?
(A) 100%
(B) 300%
(C) 600%
(D) 900%