Airports non-human proportions ranking with dates

Rank and value for each participant with the dates the participant gained that rank and value
Rank	Participant	Rank date	Value	Value date
1	Joyce	2019-08-31	1.5	2019-08-31
1	Vance	2013-12-04	1.5	2019-08-31
Ranking	2	2019-08-31	3	2019-08-31

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