Warc's Global Marketing Index is a monthly anecdotal research piece, which surveys marketing trends, rather than taking account of actual ad spend.

The GMI takes the percentage of respondents who report that activity has risen, and add it to one-half of the percentage who report the activity has not changed.

This means that anything over a '50' rating suggests an increase in spend. While mobile marketing saw a massive 70.2 rating, and digital – excluding mobile – had a 78.3 rating, press marketing was the lowest, ranked on 37.

Despite the low number, press marketing has still increased month-on-month throughout 2012. In January, the rating was 31.3, February 33.5 and March 36.1.

Warc web producer Joseph Clift told PrintWeek: "According to these latest results, digital and mobile budgets have registered strongly positive readings for this month.

"The opposite is true for print. Therefore, these latest results only imply, rather than show, that global marketing spend on print decreased in the last quarter and was largely reallocated to digital and mobile."