One question I have, though, is £40,000 seems too high a figure for average net income.

The highest rate is 94 percent for income of $200,000 or more.

Data for income is not available from the census of 2010.

The lowest rate in 1944 is 23 percent, for income of $2,000 or less.

"At some point they are going to transition over and start looking for income."

The upper range for his income was $1,570,800 or more.

"There would have been other sources for your income, of course."

They worry about losing time from work, how to make up for lost income and who will take care of their families.

By 1988, the highest rate would be 28% for income over $31,050.

The need for income is going to remain somewhat the same.