var metroList = [
  [1880, "AL", "Mobile"],
  [1880, "CA", "San Francisco"],
  [1880, "CA", "Oakland"],
  [1880, "CO", "Denver"],
  [1880, "CT", "New Haven"],
  [1880, "CT", "Hartford"],
  [1880, "DC", "Washington"],
  [1880, "GA", "Atlanta"],
  [1880, "IL", "Chicago"],
  [1880, "IN", "Indianapolis"],
  [1880, "KY", "Louisville"],
  [1880, "LA", "New Orleans"],
  [1880, "MA", "Boston"],
  [1880, "MD", "Baltimore"],
  [1880, "MI", "Detroit"],
  [1880, "MN", "St Paul"],
  [1880, "MN", "Minneapolis"],
  [1880, "MO", "St Louis"],
  [1880, "MO", "Kansas City"],
  [1880, "NE", "Omaha"],
  [1880, "NJ", "Newark"],
  [1880, "NJ", "Jersey City"],
  [1880, "NY", "Rochester"],
  [1880, "NY", "Manhattan"],
  [1880, "NY", "Buffalo"],
  [1880, "NY", "Brooklyn"],
  [1880, "NY", "Albany"],
  [1880, "OH", "Columbus"],
  [1880, "OH", "Cleveland"],
  [1880, "OH", "Cincinnati"],
  [1880, "PA", "Pittsburgh"],
  [1880, "PA", "Philadelphia"],
  [1880, "PA", "Allegheny"],
  [1880, "RI", "Providence"],
  [1880, "SC", "Charleston"],
  [1880, "TN", "Nashville"],
  [1880, "TN", "Memphis"],
  [1880, "VA", "Richmond"],
  [1880, "WI", "Milwaukee"],
  [1900, "IL", "Chicago"],
  [1900, "MA", "Boston"],
  [1900, "MD", "Baltimore"],
  [1900, "MI", "Detroit"],
  [1900, "MO", "St Louis"],
  [1900, "NY", "Manhattan"],
  [1900, "NY", "Brooklyn"],
  [1900, "OH", "Cleveland"],
  [1900, "OH", "Cincinnati"],
  [1900, "PA", "Pittsburgh"],
  [1900, "PA", "Philadelphia"],
  [1910, "IL", "Chicago"],
  [1910, "MA", "Boston"],
  [1910, "MD", "Baltimore"],
  [1910, "MI", "Detroit"],
  [1910, "MO", "St Louis"],
  [1910, "NY", "Manhattan"],
  [1910, "NY", "Brooklyn"],
  [1910, "OH", "Cleveland"],
  [1910, "OH", "Cincinnati"],
  [1910, "PA", "Pittsburgh"],
  [1910, "PA", "Philadelphia"],
  [1920, "IL", "Chicago"],
  [1920, "MA", "Boston"],
  [1920, "MD", "Baltimore"],
  [1920, "MI", "Detroit"],
  [1920, "MO", "St Louis"],
  [1920, "NY", "Manhattan"],
  [1920, "NY", "Brooklyn"],
  [1920, "OH", "Cleveland"],
  [1920, "OH", "Cincinnati"],
  [1920, "PA", "Pittsburgh"],
  [1920, "PA", "Philadelphia"],
  [1930, "AL", "Birmingham"],
  [1930, "CA", "San Francisco"],
  [1930, "CA", "San Diego"],
  [1930, "CA", "Oakland"],
  [1930, "CA", "Los Angeles"],
  [1930, "CA", "Long Beach"],
  [1930, "CO", "Denver"],
  [1930, "CT", "New Haven"],
  [1930, "CT", "Hartford"],
  [1930, "CT", "Bridgeport"],
  [1930, "DC", "Washington"],
  [1930, "FL", "Miami"],
  [1930, "FL", "Jacksonville"],
  [1930, "GA", "Atlanta"],
  [1930, "IA", "Des Moines"],
  [1930, "IL", "Chicago"],
  [1930, "IN", "Indianapolis"],
  [1930, "KS", "Kansas City"],
  [1930, "KY", "Louisville"],
  [1930, "LA", "New Orleans"],
  [1930, "MA", "Worcester"],
  [1930, "MA", "Springfield"],
  [1930, "MA", "Boston"],
  [1930, "MD", "Baltimore"],
  [1930, "MI", "Grand Rapids"],
  [1930, "MI", "Flint"],
  [1930, "MI", "Detroit"],
  [1930, "MN", "St Paul"],
  [1930, "MN", "Minneapolis"],
  [1930, "MO", "St Louis"],
  [1930, "MO", "Kansas City"],
  [1930, "NE", "Omaha"],
  [1930, "NJ", "Trenton"],
  [1930, "NJ", "Paterson"],
  [1930, "NJ", "Newark"],
  [1930, "NJ", "Jersey City"],
  [1930, "NY", "Yonkers"],
  [1930, "NY", "Syracuse"],
  [1930, "NY", "Staten Island"],
  [1930, "NY", "Rochester"],
  [1930, "NY", "Queens"],
  [1930, "NY", "Manhattan"],
  [1930, "NY", "Buffalo"],
  [1930, "NY", "Brooklyn"],
  [1930, "NY", "Bronx"],
  [1930, "NY", "Albany"],
  [1930, "OH", "Youngstown"],
  [1930, "OH", "Toledo"],
  [1930, "OH", "Dayton"],
  [1930, "OH", "Columbus"],
  [1930, "OH", "Cleveland"],
  [1930, "OH", "Cincinnati"],
  [1930, "OH", "Akron"],
  [1930, "OK", "Tulsa"],
  [1930, "OK", "Oklahoma City"],
  [1930, "OR", "Portland"],
  [1930, "PA", "Scranton"],
  [1930, "PA", "Pittsburgh"],
  [1930, "PA", "Philadelphia"],
  [1930, "RI", "Providence"],
  [1930, "TN", "Nashville"],
  [1930, "TN", "Memphis"],
  [1930, "TN", "Chattanooga"],
  [1930, "TX", "San Antonio"],
  [1930, "TX", "Houston"],
  [1930, "TX", "Fort Worth"],
  [1930, "TX", "Dallas"],
  [1930, "UT", "Salt Lake City"],
  [1930, "VA", "Richmond"],
  [1930, "VA", "Norfolk"],
  [1930, "WA", "Spokane"],
  [1930, "WA", "Seattle"],
  [1930, "WI", "Milwaukee"],
  [1940, "AL", "Birmingham"],
  [1940, "CA", "San Francisco"],
  [1940, "CA", "San Diego"],
  [1940, "CA", "Oakland"],
  [1940, "CA", "Los Angeles"],
  [1940, "CA", "Long Beach"],
  [1940, "CO", "Denver"],
  [1940, "CT", "New Haven"],
  [1940, "CT", "Hartford"],
  [1940, "CT", "Bridgeport"],
  [1940, "DC", "Washington"],
  [1940, "FL", "Miami"],
  [1940, "FL", "Jacksonville"],
  [1940, "GA", "Atlanta"],
  [1940, "IA", "Des Moines"],
  [1940, "IL", "Chicago"],
  [1940, "IN", "Indianapolis"],
  [1940, "KS", "Kansas City"],
  [1940, "KY", "Louisville"],
  [1940, "LA", "New Orleans"],
  [1940, "MA", "Worcester"],
  [1940, "MA", "Springfield"],
  [1940, "MA", "Boston"],
  [1940, "MD", "Baltimore"],
  [1940, "MI", "Grand Rapids"],
  [1940, "MI", "Flint"],
  [1940, "MI", "Detroit"],
  [1940, "MN", "St Paul"],
  [1940, "MN", "Minneapolis"],
  [1940, "MO", "St Louis"],
  [1940, "MO", "Kansas City"],
  [1940, "NE", "Omaha"],
  [1940, "NJ", "Trenton"],
  [1940, "NJ", "Paterson"],
  [1940, "NJ", "Newark"],
  [1940, "NJ", "Jersey City"],
  [1940, "NY", "Yonkers"],
  [1940, "NY", "Syracuse"],
  [1940, "NY", "Staten Island"],
  [1940, "NY", "Rochester"],
  [1940, "NY", "Queens"],
  [1940, "NY", "Manhattan"],
  [1940, "NY", "Buffalo"],
  [1940, "NY", "Brooklyn"],
  [1940, "NY", "Bronx"],
  [1940, "NY", "Albany"],
  [1940, "OH", "Youngstown"],
  [1940, "OH", "Toledo"],
  [1940, "OH", "Dayton"],
  [1940, "OH", "Columbus"],
  [1940, "OH", "Cleveland"],
  [1940, "OH", "Cincinnati"],
  [1940, "OH", "Akron"],
  [1940, "OK", "Tulsa"],
  [1940, "OK", "Oklahoma City"],
  [1940, "OR", "Portland"],
  [1940, "PA", "Scranton"],
  [1940, "PA", "Pittsburgh"],
  [1940, "PA", "Philadelphia"],
  [1940, "RI", "Providence"],
  [1940, "TN", "Nashville"],
  [1940, "TN", "Memphis"],
  [1940, "TN", "Chattanooga"],
  [1940, "TX", "San Antonio"],
  [1940, "TX", "Houston"],
  [1940, "TX", "Fort Worth"],
  [1940, "TX", "Dallas"],
  [1940, "UT", "Salt Lake City"],
  [1940, "VA", "Richmond"],
  [1940, "VA", "Norfolk"],
  [1940, "WA", "Spokane"],
  [1940, "WA", "Seattle"],
  [1940, "WI", "Milwaukee"]
];