It was also down from January 1988, when the index measured 57.3 percent.

Each index measures the median performance of 30 general equity funds.

A separate index measured the social health of the nation as a whole and also showed a sharp decline since 1970.

Other indexes measuring the broader market, including smaller issues, were not as strong.

The index measures the health and happiness they produce per unit of environmental input.

This index measures the efforts of 163 countries worldwide.

The index measures the change in retail prices for housing, food, transportation and electricity.

The index measures the trading volume of advancing and declining stocks.

The index measures ungeared total returns to direct property investments.

Three complementary indexes measure the opportunities Access provides to people, businesses and nations overall.