And yet at the very highest exposures, the risk went back to almost normal.
The condition of the four men with the highest exposure has shown no significant improvement.
It provides the highest exposure of volcanic rock on the island.
Not all international funds with high exposure to technology did poorly last year, however.
Such studies can only be used when the effect is strong enough, hence, for high exposures.
The outbreak of war in 1914 brought high exposure to the church.
However, people who live near government weapons production or testing sites may have higher exposure.
"News consumers with extremely high or low exposure are rare," says the study.
Both companies have relatively high exposure to slowing overseas economies.
And I think it's got to have one year of really high exposure.