Mobile advertising is on a high-growth trajectory. The numbers don’t lie. (OK, sometimes they do.) If you’re pitching the importance of mobile advertising to a client or investors, here are some data points to help you build a stronger case.

$2.6 billion: Projected mobile ad spending for 2012, an increase of 80% over the $1.45 billion spent in 2011. (eMarketer )

18%: Percentage of mobile ad inventory filled in Q2 2011 (Smaato ).

88%: Share of local online advertising that will be delivered on a mobile device by 2016, with revenues approaching $24 billion (Borell Associates ).

93.5%: Expected increase in US mobile display ad spending this year, from $445.4 million in 2011 to $861.7 million in 2012. (eMarketer )

122%: Increase expected on mobile video ad spending in 2012, rising to $151.5 million this year from $68.2 in 2011. (eMarketer )

19%: Share of adults who said they owned a tablet in January, up from 10% in December (Pew )

66%: Percentage of users who said they interacted with advertising in a magazine app; 40% said they had made a purchase as a result (Texterity )

8 billion: Number of ad requests coming through the AdMob network from tablets in November 2011, up from 1 billion in December 2010 ( )

$1 million: Minimum commitment for Apple iAd programs at iAd’s launch in July 2010

$400,000: Current minimum commitment for iAds (WSJ )

21%: Share of impressions on the inMobi mobile ad network by Android devices in Q4 2011; iOS devices captured 17% (inMobi )

6: Consecutive years (and counting) that someone has declared the “Year of Mobile” is upon us. See  , 2008 , 2009 , 2010 , 2011 , 2012 .

Click HERE to see the EMedia Vitals article