Table:
text: 1983 NHL Entry Draft
Selections by round
Round seven
Pick_ Player Position_ Nationality NHL_team College_junior_club_team_
131 Jeff Hogg Goaltender Canada Calgary Flames Oshawa Generals (OHL)
132 Craig Mack Defence United States Quebec Nordiques East Grand Forks High School (USHS-MN)
133 Steve Orth Centre United States New York Rangers St. Cloud State University (WCHA)
134 Christian Ruuttu Centre Finland Buffalo Sabres Pori (Finland)
135 Dwaine Hutton Centre Canada Washington Capitals Kelowna Wings (WHL)
136 Sean Toomey Left Wing United States Minnesota North Stars Cretin-Derham Hall High School (USHS-MN)
137 Jim Sprenger Defence United States New York Islanders Cloquet High School (USHS-MN)
138 Vladislav Tretiak Goaltender Soviet Union Montreal Canadiens Moscow CSKA (USSR)
139 Scott Birnie Rignt wing Canada Chicago Black Hawks Cornwall Royals (OHL)

text: 1983 NHL Entry Draft
Selections by round
Round seven
Pick_ Player Position_ Nationality NHL_team College_junior_club_team_
140 Dale Derkatch Centre Canada Edmonton Oilers Regina Pats (WHL)
141 Bob Mormina Right Wing Canada Philadelphia Flyers Longueuil Chevaliers (QMJHL)
142 Ian Armstrong Defence Canada Boston Bruins Peterborough Petes (OHL)

Question: How many center position players are in the 1983 NHL Entry Draft?