Maybe you can start digging from here: See here: https://www.nytimes.com/packages/html/newsgraphics/2011/0119-budget/ https://www.nytimes.com/packages/html/news

Maybe you can start digging from here: See here: https://www.nytimes.com/packages/html/newsgraphics/2011/0119-budget/ https://www.nytimes.com/packages/html/newsgraphics/2011/0119... And here: https://en.wikipedia.org/wiki/Fuel_taxes_in_the_United_States#Federal_taxes https://en.wikipedia.org/wiki/Fuel_taxes_in_the_United_State... $25 billion received via gas taxes at the federal level in 2006 (60% spent on roads). $70 billion spent by feds in 2012.