Apple CEO Steve Jobs' approval rating on Forbes has slipped from 94 per cent in February to a mere 89 per cent in March – but he needn't be too worried, he is still enjoying the highest ranking of any CEO in the monthly ranking.

Jobs has ranked consistently high and in February he received the highest ever ranking for any CEO on the Forbes CEO Approval Ratings.

The lowest ranking Jobs received was 75 per cent last April – few other CEOs even reach a 75 per cent approval rating.

Forbes says: "Our CEO approval ratings lets you vote on the job performance of the country's most prominent business leaders". It is possible to vote for any CEO, but each one can only be voted for once.