The following visualization let you explore how the age profile of SPE membership has changed over the years.
 ☰ Menu of VisualizationsTo see how this data changes over time press the play button. The animation can be stopped at any time by pressing the stop button. Additionally, the graph for any particular year can be selected by clicking on the years below the graph.
Resizing:
The graph is designed to fill the entire width of your browser's window. It will resize when you expand or shrink your browser
window. If you change the window size while the graph is animated, the blue, visible plot area will not change so you will need
to resize the window again after the animation is finished.
Values:
You can find the values at any point on the graph by hovering your pointer over that location.
Tools:
There is a tools menu at the upper right of the graph which is visible when you move your cursor to that area. With
these you can capture an image of the graph, zoom (in, out, or continuously), pan, autoscale the axes for a single plot,
reset the axes to the original values, turn on/off spike lines, turn on/off hover information and compare hover information.