I have a range of (Australian) post codes and some values assigned to them, e.g.

postcode,value
2000,81
2001,2
2007,10
2009,5
2010,31
2011,10
2013,1
2015,4
2016,6
2017,8
2018,8
2019,18
2020,11
2021,6
2022,49

I’d like to visualise this data on OSM in different shades of colour. Is that possible and if so how?