Enter the name of data file: cities.txt
city: Boston
state abbreviation: MA
1790    3         18,300
1810    4         38,700
1830    3         85,600
1850    3        308,000
1870    3        501,000
1890    4        818,000
1910    4      1,213,000
1930    6      1,479,000
1950    6      2,301,000
1970    7      2,703,000
1990    9      3,355,000
2010    11     4,407,000

city: Kansas City
state abbreviation: MO
1890    19       165,000
1910    16       357,000
1930    16       561,000
1950    19       698,000

city: Louisville
state abbreviation: KY
1830    16        10,300
1850    13        61,000
1870    13       129,000
1890    18       183,000

city: Portland
state abbreviation: OR
no results found for Portland OR

city: Portland
state abbreviation: ME
1810    15         7,200
1830    15        12,600
1850    20        36,000

city: quit