updated pop estimate table and created constant with estimates#942

Merged

tillyw merged 7 commits intomasterfrom 4215_update_VZV_by_population_chart

Nov 4, 2020

+58-23

Commits on Nov 4, 2020

took in edits and refactored code to update programmatically

Tilly Whitson
authored and
Tilly Whitson
committed
added 20201 estimate
tillyw
committed
added fallback in case there is no estimate for the current year
tillyw
committed