11.   The break-even inflation rate is calculated by subtracting the real yield on the indexed bond from the yield on a conventional note of similar maturity.

12.   The construction index is calculated by subtracting the percentage of respondents who are expecting a decrease in new orders, employment and prices from those who foresee an increase.

13.   The diffusion index is calculated by subtracting the percentage of optimistic responses from the percentage of pessimistic responses.

14.   The diffusion index is calculated by subtracting the percentage of survey respondents who replied conditions were good from those who replied conditions were poor.

15.   The diffusion index is calculated by subtracting the percentage of respondents who say business conditions are worse from the percentage of those who say they are better.

16.   The construction survey is calculated by subtracting the percentage of respondents expecting a decrease in new orders, employment, and prices from the percentage who foresee an increase.

17.   The index is calculated by subtracting the percentage of companies that feel pessimistic about economic conditions from those that feel optimistic.

18.   The indexes are calculated by subtracting the number of respondents who say manufacturing or prices are falling from the number who say they are rising.

19.   The indexes are calculated by subtracting the percentage of those who feel pessimistic about the economy from those who are optimistic.

20.   The indexes are calculated by subtracting the number of respondent who say manufacturing or prices are rising from the number who say they are falling.