The share of spam as a percentage of world email traffic gradually increased throughout the entire Q4 2019 and in December amounted to 57.26%. In the Asia-Pacific region, we also observed an increase in the amount of spam in email traffic from September (50.19%) to December (52.62%) As you can see from the diagram, the increase is quite gradual. At the same time, the volume of junk messages reached a peak in January, when their share made their share.”]
Source: https://securelist.com/new-year-phishing-spam/96124/