As for the fundraiser's duration, I believe the
2014 fundraiser ran for 30
days (December 2 to December 31, 2014).
That's certainly incorrect.
shows about 200
campaigns started in 2014, excluding sidebar and other "regular" stuff.
A campaign can contain hundreds of banners. Some campaigns lasted few
hours, most of them several days or weeks.
Because according tohttps://meta.wikimedia.org/wiki/Fundraising_2013
"In 2012, we were able to shorten the fundraiser down to nine full days,
the shortest fundraiser we've had."
As noted in https://meta.wikimedia.org/wiki/Talk:Fundraising_2012/Report
, those numbers are meaningless comparisons. We've been waiting for the
number of impressions (at a minimum) for 20 months now.