wastewater pilot-test design
Table:
test site
wastewater treatment plants
2018 population

central halifax
3
0.2

montreal island
1
2.0

toronto city
4
2.8

edmonton city
1
1.0

vancouver metro area
5
2.5

total
14
8.4

Answer the given question as concisely as possible using information from the table. Answers must be within a JSON object e.g. {"answer": ["YOUR ANSWER"]}. List multiple answers with commas inside the list object. 'wastewater pilot-test design' is the caption of the table. Please answer the question according to the table: What were the numbers of wastewater treatment plants and the population in 2018(millions) respectively?

{"answer": ["14.0", "8.4"]}