YearPercentage days with good airPercentage days with moderate airPercentage days with unhealthy air for sensitive groupsPercentage days with unhealthy air
199790.08%9.09%0.83%0.00%
199892.01%6.89%1.10%0.00%
199987.19%11.70%1.11%0.00%
200086.63%11.14%1.67%0.56%
200193.70%6.03%0.27%0.00%
200294.49%5.51%0.00%0.00%
200393.42%6.03%0.55%0.00%
200494.23%5.22%0.55%0.00%
200590.06%9.94%0.00%0.00%
200691.14%8.29%0.57%0.00%
200789.50%8.84%1.66%0.00%