import csv

with open('data.csv', newline='') as csvfile:
  reader = csv.DictReader(csvfile)
  for row in reader:
    row['number'] = row['number'].replace('.','')
    row['number'] = int(row['number'])

  maxi=0
  for row in reader:
    if row['number']>maxi:
      state = row['state']
      year= row ['year']
      maxi=row['number']
    print(year)