List of NHL playoff series

Columns: Opponent | S | Occurrences | GP | Rec | %
Montreal Canadiens | 2 | 1998 , 2010 | 13 | 0-2 | .000 | California Golden Seals | 1 | 1970 | 4 | 1-0 | 1.000 | Carolina Hurricanes | 1 | 2009 | 4 | 1-0 | 1.000 | Dallas Stars | 1 | 1991 | 6 | 1-0 | 1.000 | Nashville Predators | 1 | 2017 | 6 | 1-0 | 1.000 | San Jose Sharks | 1 | 2016 | 6 | 1-0 | 1.000

Example questions:
In what year was the NHL team with the most playoff appearances against the Pittsburgh Penguins established ? | What is the nickname of the NHL team that has the most games played in the playoffs against the Pittsburgh Penguins ? | In what division did the NHL team with only one appearance against the Pittsburgh Penguins ( in 2016 ) play ? | Where does the NHL team with a .714 loss percentage against the Pittsburgh Penguins play their home games ?

Answers:
1974 | Caps | Pacific Division | Madison Square Garden