Question: In what year was the driver who was leader of the standings at the time of the 1997 Molson Indy Vancouver born?

Context paragraphs:
Alex Zanardi: Alessandro "Alex" Zanardi (] ; born 23 October 1966) is an Italian professional racing driver and paracyclist.

1997 Molson Indy Vancouver: The 1997 Molson Indy Vancouver was the 15th round of the 1997 CART season.  At that time, the Italian driver Alex Zanardi was the leader of the standings with 39 points in front of the French-Brazilian driver Gil de Ferran.

2001 Molson Indy Vancouver: The 2001 Molson Indy Vancouver was a Championship Auto Racing Teams (CART) motor race held on September 2, 2001 at Concord Pacific Place in Vancouver, British Columbia, Canada.  It was the 15th round of the 2001 CART season.  Roberto Moreno won the shortened race by five seconds over Gil de Ferran and Michael Andretti.

2003 Molson Indy Vancouver: The 2003 Molson Indy Vancouver was the eleventh round of the 2003 CART World Series season, held on July 27, 2003 on the streets of Concord Pacific Place in Vancouver, British Columbia, Canada.

2002 Molson Indy Vancouver: The 2002 Molson Indy Vancouver was the tenth round of the 2002 CART FedEx Champ Car World Series season, held on July 28, 2002 on the streets of Concord Pacific Place in Vancouver, British Columbia, Canada.

1999 Molson Indy Vancouver: The 1999 Molson Indy Vancouver was a Championship Auto Racing Teams (CART) motor race held on September 5, 1999 at Concord Pacific Place in Vancouver, British Columbia, Canada.  It was the 16th round of the 1999 CART season.  Juan Pablo Montoya won the race from pole position and led nearly every lap en route to his seventh win of the season, followed by Patrick Carpentier and Jimmy Vasser.

1998 Molson Indy Vancouver: The 1998 Molson Indy Vancouver was the fifteenth round of the 1998 CART FedEx Champ Car World Series season, held on September 6, 1998, at Concord Pacific Place in Vancouver, British Columbia, Canada.  Dario Franchitti took his second consecutive win at this race, after passing Michael Andretti for the lead with seven laps left.  In doing so, Franchitti became the first driver to win a race from pole for over a year.

Molson Indy Vancouver: Molson Indy Vancouver was an annual Champ Car race held in a street circuit near BC Place and running past Science World in Vancouver, British Columbia, Canada held in July or August from 1990 to 2004.

2001 Molson Indy Toronto: The 2001 Molson Indy Toronto was a Championship Auto Racing Teams (CART) motor race held on July 15, 2001, at the Exhibition Place circuit in Toronto, Ontario, Canada.  It was the tenth round of the 2001 CART season, the 16th annual edition of the Molson Indy Toronto, and the first of two events that were held in Canada.  The 95-lap race was won by Team Motorola driver Michael Andretti, who started from the 13th position.  Alex Tagliani finished second for the Forsythe Racing team, and Fernandez Racing driver Adrián Fernández came in third.

2004 Molson Indy Vancouver: The 2004 Molson Indy Vancouver was the seventh round of the 2004 Bridgestone Presents the Champ Car World Series Powered by Ford season.  Held on July 25 2004 on the streets of Concord Pacific Place in Vancouver, British Columbia, Canada, it was the last Champ Car event to take place in Vancouver.

Supporting paragraphs: 1997 Molson Indy Vancouver Alex Zanardi
Answer: 1966