YearPercentage days with good airPercentage days with moderate airPercentage days with unhealthy air for sensitive groupsPercentage days with unhealthy air
199779.71%19.32%0.97%0.00%
199873.10%25.38%1.52%0.00%
199964.41%34.32%1.27%0.00%
200071.07%26.79%2.14%0.00%
200186.18%13.82%0.00%0.00%
200289.64%10.36%0.00%0.00%
200381.45%17.45%1.09%0.00%
200487.99%12.01%0.00%0.00%
200582.11%17.89%0.00%0.00%
200686.62%13.38%0.00%0.00%
200788.65%11.35%0.00%0.00%