Accumulative sum of a field between two dates and return only the top 2 in 2 different objects

[fishing_weights]

I have a staff table: 

Date	Staff	KPI (1 = yes, 0 = no)
2021	JOHN	1
2021	PAUL	0
2021	ALLAN	0
2020	JOHN	1
2020	PAUL	1
2020	ALLAN	0
2019	JOHN	1
2019	PAUL	0
2019	ALLAN	0
2018	JOHN	1
2018	PAUL	1
2018	ALLAN	0

I need to show the top 2 staff in different objects in the dashboard base on the year the user select + the previous year.

Example if the user select 2020,

for John it would be 2020(1) + 2019(1) = 2

for Paul it would be 2020(1) + 2019(0) = 1

and for Allan it would be 2020(0) + 2019(0) = 0

First Object would then show: Top Staff = John

Second Object would then show:  2nd Runner up Staff = Paul

Is there a function to do this?

Thanks in advance