YearPercentage days with good airPercentage days with moderate airPercentage days with unhealthy air for sensitive groupsPercentage days with unhealthy air
199778.02%15.93%4.67%1.37%
199873.90%18.96%6.32%0.82%
199977.53%15.34%5.48%1.64%
200078.85%17.03%3.57%0.55%
200179.34%16.25%4.13%0.28%
200282.87%13.54%2.76%0.83%
200376.99%19.18%3.84%0.00%
200483.79%13.19%2.75%0.27%
200572.60%22.74%4.38%0.27%
200676.44%18.08%5.21%0.27%
200787.74%12.26%0.00%0.00%