Looking at tab 2 (Number of contributions):
In 2007 from day 14 and onwards the number of gifts per day more than
Is it known why that happened? Just curious.
So, Obama has won election in the USA, people are more happy (maybe not only part of
people in USA) - they want to pay for that ;)
they can't pay to Obama and find other ways to pay for this (their) victory. If you
are happy you are able to give more.
In 2007 after 2 weeks banner has been changed.