Related to feedback received while working on #1040, our UI mockups contain a 'summary statistics' panel. Design and implement the 'summary statistics' panel(s) on the dashboard, including:
- number of requests displayed /
- total count of requests
- percentage of successful requests
- average response time (probably using mode, as opposed to mean)
- number of unique users who have called the API(s)
Wireframe

References
For the 'average response time' panel, the mode is suggested based on the observation that response time data is skewed, e.g. it 'leans to the left'. For skewed data, the mode will give a better estimation of the center than the mean, .
See: Wikipedia - Skewness

