Area (1 000 km²)
|
1996
|
1997
|
1998
|
1999
|
2000
|
2001
|
2002
|
2003
|
2004
|
2005
|
2006
|
2007
|
2008
|
2009
|
2010
|
2011
|
2012
|
2013
|
2014
|
2015
|
0-6 000 µg/m³.h
|
154
|
198
|
308
|
90
|
327
|
215
|
215
|
173
|
413
|
258
|
49
|
484
|
97
|
411
|
316
|
260
|
293
|
408
|
311
|
430
|
6 000-12 000 µg/m³.h
|
518
|
600
|
324
|
347
|
505
|
477
|
487
|
276
|
483
|
336
|
145
|
517
|
580
|
689
|
592
|
552
|
668
|
755
|
745
|
508
|
12 000-18 000 µg/m³.h
|
468
|
621
|
556
|
815
|
405
|
419
|
449
|
256
|
434
|
511
|
438
|
383
|
648
|
494
|
710
|
874
|
542
|
472
|
634
|
482
|
> 18 000 µg/m³.h
|
883
|
605
|
836
|
772
|
788
|
913
|
873
|
1319
|
694
|
919
|
1391
|
658
|
727
|
457
|
435
|
376
|
560
|
427
|
372
|
614
|
Covered area
|
2024
|
2024
|
2024
|
2024
|
2024
|
2024
|
2024
|
2024
|
2024
|
2024
|
2024
|
2042
|
2052
|
2052
|
2054
|
2063
|
2063
|
2063
|
2063
|
2034
|