data0 = (live
? d3.csv("https://opendata.ecdc.europa.eu/covid19/virusvariant/csv/data.csv")
: FileAttachment("data-2022-02-20.csv").csv()
).then((d) =>
d.map((d) => ({
...d,
date: parse(d.year_week),
number_sequenced: +d.number_sequenced,
percent_variant: +d.percent_variant
}))
)