Where/how can I easily see how many BigQuery analysis queries have been run per month. How about storage usage overall/changes-over-time(monthly)?

I've had a quick look at "Monitoring > Dashboards > Bigquery". Is that the best place to explore? It only seems to go back to early October - was that when it was released or does it only display the last X weeks of data? Trying metrics explorer for Queries Count (Metric:bigquery.googleapis.com/job/num\_in\_flight) was giving me a weird unlabelled y-axis, e.g. a scale of 0 to 0.08? Odd as I expect to see a few hundred queries run per week.

Context: It would be good to have a high level summary of BigQuery, as the the months progress, to give an idea to the wider organisation and management on the scale of usage.