data = (await FileAttachment('film_permits_reduced.csv').csv())
.map(permit => {
const parser = d3.timeParse('%Y-%m-%d %H:%M:%S');
permit['StartDateTime'] = parser(permit['StartDateTime']);
permit['EndDateTime'] = parser(permit['EndDateTime']);
permit['ZipCodes'] = permit['ZipCode(s)'].split(', ');
delete permit['SubCategoryName'];
delete permit['ZipCode(s)'];
return permit;
})