1) The table below shows the consumer price index (CPI) over several years for South Africa.

Month/year CPI

November 2016 98,5

December 2016 100

February 2018 103,4

March 2018 104,5

February 2019 107,8

March 2019 108,8

Which of the following is true based on this data?

1) November 2016 is the base year

2) Inflation rate (March 2019 vs March 2018) is 4,1%

3) Inflation rate (March 2019 vs February 2019) is -0,91%

4) Aggregate demand increased every year from March 2017 to March 2019