Listed here, $,$ are data that pertain to the corporate bond market. $($Note: Each "period" below covers a span of $6$ months.$)$

a$.$ Compute the confidence index for each of the four periods listed above.

index over the period of time covered in the problem $($i$.$e$.,$ from period $0$ through period $4)?$

a$.$ Confidence index for period $1$ is $\%.($Round to two decimal places.$)$

Confidence index for period $2$ is $\%.($Round to two decimal places.$)$

Confidence index for period $3$ is $\%.($Round to two decimal places.$)$

Confidence index for period $4$ is $,\%.($Round to two decimal places.$)$

b$.$ The bond yield spreads fluctuate up and then down, while the confidence index goes and then down. $($Select from the drop$-$down menus.$)$

c$.$ The overall market is bullish. The most bullish period is $,$ while the most bearish period is $|.($Select from the drop$-$down menus.$)$

Data table

$($Click on the icon here $$ in order to copy the contents of the data table below into a spreadsheet.$)$