Kaspersky Security Bulletin. Spam in 2014In 2014, the proportion of spam in email traffic was 66.76%, which is 2.84 percentage points lower than in the previous year. Spam levels have fallen consistently from a peak of 85.2% in 2009. This is due to the fact that adverts for legal goods and services are abandoning spam in favor of more effective legal advertising platforms.
Source:
Kaspersky Security Bulletin. Spam in 2014
