Forklift drivers are the fifth least stressed workers in the USA, according to a new jobs almanac.

"Jobs Rated Alamanac" rated forklift drivers behind actuaries, medical records technicians, florists and musical instrument repairers in its list of the least stressful vocations.

According to the almanac, US president George W Bush is the most stressed worker in the country and taxi drivers are the fifth most stressed workers. Senior corporate executives ranked third.

Author Lez Krantz said biologists had the best occupation overall and lumberjacks had the worst.