Description for Chart 4 Years gained in life expectancy at birth resulting from declines in deaths from selected causes of deaths, Canada, 1951-1981 and 1981-2001

The title of the graph is "Chart 4 Years gained in life expectancy at birth resulting from declines in deaths from selected causes of deaths, Canada, 1951 to 1981 and 1981 to 2001."
This is a column clustered chart.
There are in total 6 categories in the horizontal axis. The vertical axis starts at -0.5 and ends at 4.5 with ticks every 0.5 points.
There are 2 series in this graph.
The vertical axis is "years gained."
The horizontal axis is "Cause of death."
The title of series 1 is "1951 to 1981."
The minimum value is -0.04 and it corresponds to "Cancers."
The maximum value is 2.76 and it corresponds to "Diseases of the circulatory system."
The title of series 2 is "1981 to 2011."
The minimum value is -0.1 and it corresponds to "Infectious and parasitic diseases."
The maximum value is 4.03 and it corresponds to "Diseases of the circulatory system."