I can get you the specific date, but I believe they ceased around 1995 and resumed in 2006.
On April 21st, 2009. See this statement in context.
On April 21st, 2009. See this statement in context.
April 21st, 2009 / 10:15 a.m.
Commissioner of the Environment and Sustainable Development, Office of the Auditor General of Canada
I can get you the specific date, but I believe they ceased around 1995 and resumed in 2006.
See context to find out what was said next.