How many different nationalities do the players of New Jersey Devils come from?
{'header': ['Pick', 'Player', 'Position', 'Nationality', 'NHL team', 'College/junior/club team'], 'page_title': '1994 NHL Entry Draft', 'section_title': 'Round three', 'caption': 'Round three', 'rows': [['53', 'Corey Neilson', 'Defence', 'Canada', 'Edmonton Oilers', 'North Bay Centennials (OHL)'], ['54', 'Chris Murray', 'Right Wing', 'Canada', 'Montreal Canadiens', 'Kamloops Blazers (WHL)'], ['55', 'Vadim Epanchintsev', 'Centre', 'Russia', 'Tampa Bay Lightning', 'Spartak Moscow (Russia)'], ['56', 'Dorain Anneck', 'Right Wing', 'Canada', 'Winnipeg Jets', 'Victoria Cougars (WHL)'], ['57', 'Sven Butenschon', 'Defence', 'Germany', 'Pittsburgh Penguins', 'Brandon Wheat Kings (WHL)'], ['58', 'Tavis Hansen', 'Left Wing', 'Canada', 'Winnipeg Jets', 'Tacoma Rockets (WHL)'], ['59', 'Vitali Yachmenev', 'Left Wing', 'Russia', 'Los Angeles Kings', 'North Bay Centennials (OHL)'], ['60', 'Brad Symes', 'Defence', 'Canada', 'Edmonton Oilers', 'Portland Winter Hawks (WHL)'], ['61', 'Sebastien Bety', 'Defence', 'Canada', 'Quebec Nordiques', 'Drummondville Voltigeurs (QMJHL)'], ['62', 'Artem Anisimov', 'Defence', 'Russia', 'Philadelphia Flyers', 'Itil Kazan (Russia)'], ['63', 'Jason Strudwick', 'Left Wing', 'Canada', 'New York Islanders', 'Kamloops Blazers (WHL)'], ['64', 'Fredrik Modin', 'Left Wing', 'Sweden', 'Toronto Maple Leafs', 'Timra IK (Sweden)'], ['65', 'Chad Allen', 'Defence', 'Canada', 'Vancouver Canucks', 'Saskatoon Blades (WHL)'], ['66', 'Alexei Yegorov', 'Right Wing', 'Russia', 'San Jose Sharks', 'SKA Saint Petersburg (Russia)'], ['67', 'Craig Reichert', 'Right Wing', 'Canada', 'Mighty Ducks of Anaheim', 'Red Deer Rebels (WHL)'], ['68', 'Stephane Roy', 'Centre', 'Canada', 'St. Louis Blues', "Val-d'Or Foreurs (QMJHL)"], ['69', 'Rumun Ndur', 'Defence', 'Canada', 'Buffalo Sabres', 'Guelph Storm (OHL)'], ['70', 'Marko Kiprusoff', 'Defence', 'Finland', 'Montreal Canadiens', 'TPS (Finland)'], ['71', 'Sheldon Souray', 'Defence', 'Canada', 'New Jersey Devils', 'Tri-City Americans (WHL)'], ['73', 'Greg Crozier', 'Left Wing', 'Canada', 'Pittsburgh Penguins', 'Lawrence Academy (HS-Massachusetts)'], ['74', 'Martin Belanger', 'Defence', 'Canada', 'Montreal Canadiens', 'Granby Bisons (LHJMQ)'], ['75', 'Sean Gillam', 'Defence', 'Canada', 'Detroit Red Wings', 'Spokane Chiefs (WHL)'], ['76', 'Alexei Krivchenkov', 'Defence', 'Russia', 'Pittsburgh Penguins', 'CSKA Moscow (Russia)'], ['77', 'Chris Clark', 'Left Wing', 'United States', 'Calgary Flames', 'Springfield Olympics (NEJHL)'], ['78', 'Adam Smith', 'Defence', 'Canada', 'New York Rangers', 'Tacoma Rockets (WHL)']]}