DynamoDB Downscales within the last 24 hours?

Is it anyhow possible to get the count, how often DynamoDB throughput (write units/read units) was downscaled within the last 24 hours?

My idea is to downscale as soon as an hugo drop e.g. 50% in the needed provisioned write units occur. I have really peaky traffic. Thus it is interessting to me to downscale after every peak. However I have a analytics jobs running at night which is provisioning a huge amount of read units making it necessary to be able to downscale after it. Thus I need to limit downscales to 3 times within 24 hours.