=+in 2003, 2004, and 2005 are summarized in the given table. The samples for each year were independently selected and are considered to be representative of the population of undergraduate students in the year the survey was conducted. Is there evidence that the distribution of political affiliation is not the same for all three years for which data are given?

Year Political Affiliation 2005 2004 2003 Democrat 397 409 325 Republican 301 349 373 Independent/unaffiliated 458 397 457 Other 60 48 48