This graph was during the Occupy Wall Street protests in 2011, and this is just another ingredient to the mix of banking sectors reaching a new low in public respect.
The finding show that a majority of Americans 55% have little to no respect for the banking sectors and also in the UK where 64% say the same. As seen from the graph this is a steep decline from public respect thoughts in 2005. Due to the bank crisis of 2008 it accelerated.