Name the least pick number for colin campbell
{'header': ['Pick #', 'Player', 'Position', 'Nationality', 'NHL team', 'College/junior/club team'], 'page_title': '1973 NHL Amateur Draft', 'section_title': 'Round two', 'caption': 'Round two', 'rows': [['17', 'Glenn Goldup', 'Right Wing', 'Canada', 'Montreal Canadiens', 'Toronto Marlboros (OHA)'], ['18', 'Blake Dunlop', 'Centre', 'Canada', 'Minnesota North Stars', "Ottawa 67's (OHA)"], ['19', 'Paulin Bordeleau', 'Right Wing', 'Canada', 'Vancouver Canucks', 'Toronto Marlboros (OHA)'], ['20', 'Larry Goodenough', 'Defence', 'Canada', 'Philadelphia Flyers', 'London Knights (OHA)'], ['21', 'Eric Vail', 'Left Wing', 'Canada', 'Atlanta Flames', 'Sudbury Wolves (OHA)'], ['22', 'Peter Marrin', 'Centre', 'Canada', 'Montreal Canadiens', 'Toronto Marlboros (OHA)'], ['23', 'Wayne Bianchin', 'Left Wing', 'Canada', 'Pittsburgh Penguins', 'Flin Flon Bombers (WCHL)'], ['24', 'George Pesut', 'Defence', 'Canada', 'St. Louis Blues', 'Saskatoon Blades (WCHL)'], ['25', 'John Rogers', 'Right Wing', 'Canada', 'Minnesota North Stars', 'Edmonton Oil Kings (WCHL)'], ['26', 'Brent Leavins', 'Left Wing', 'Canada', 'Philadelphia Flyers', 'Swift Current Broncos (WCHL)'], ['27', 'Colin Campbell', 'Defence', 'Canada', 'Pittsburgh Penguins', 'Peterborough Petes (OHA)'], ['28', 'Jean Landry', 'Defence', 'Canada', 'Buffalo Sabres', 'Quebec Remparts (QMJHL)'], ['29', 'Reg Thomas', 'Left Wing', 'Canada', 'Chicago Black Hawks', 'London Knights (OHA)'], ['30', 'Pat Hickey', 'Left Wing', 'Canada', 'New York Rangers', 'Hamilton Red Wings (OHA)'], ['31', 'Jimmy Jones', 'Right Wing', 'Canada', 'Boston Bruins', 'Peterborough Petes (OHA)'], ['32', 'Ron Andruff', 'Centre', 'Canada', 'Montreal Canadiens', 'Flin Flon Bombers (WCHL)']]}