See the multi-choice question below:

Sentence 1: Personal saving averaged 5.7 percent of GDP in the 1960s and increased to an average of almost 7 percent over the 1970s and 1980s.

Sentence 2: Personal savings went down sharply.

If the first sentence is true, then is the second sentence true?
Options are: i. yes. ii. it is not possible to tell. iii. no.
iii.