Year Settlements Dwellings Length of public sewerage, km Length of public sewerage network per one km water-conduit network, m
supplied with public sewerage
total in % of all settlements total in % of all dwellings of
total towns villages
1990 429 14.0 1,616,714 41.6 64.8 3.2 11,964 228
1991 437 14.2 1,648,703 42.1 65.3 3.4 12,524 231
1992 447 14.5 1,679,988 42.7 65.7 3.7 12,933 234
1993 456 14.7 1,701,977 43.0 65.8 3.9 13,815 245
1994 460 14.8 1,724,746 43.4 65.5 4.4 14,902 260
1995 514 16.4 1,761,471 44.2 66.1 5.6 15,683 266
1996 547 17.5 1,801,687 44.9 66.4 6.9 16,974 284
1997 647 20.7 1,855,322 46.0 66.9 8.5 18,472 304
1998 724 23.1 1,925,604 47.6 67.0 11.5 20,922 342
1999 794 25.4 1,992,516 49.1 68.1 14.0 22,732 367
2000 854 27.2 2,078,762 51.0 69.8 16.6 24,683 396
2001 992 31.6 2,179,085 53.4 69.9 20.2 27,233 435
2002 1,156 36.9 2,299,383 56.0 72.2 23.2 30,536 484
2003 1,302 41.9 2,298,888 59.1 74.7 27.4 33,268 522
2004 1,392 44.2 2,595,470 62.2 76.9 31.9 35,447 551
2005 1,469 46.7 2,733,853 64.9 79.0 34.7 36,863 570
2006 1,545 49.1 2,856,674 67.4 81.1 36.7 38,744 597
2007 1,607 51.0 2,979,885 69.8 83.2 39.7 40,530 621
2008 1,669 53.0 3,054,956 71.0 84.0 41.1 41,897 643
2009 1,725 54.7 3,119,437 72.0 84.7 42.3 42,438 651
2010 1,741 55.2 3,144,228 72.3 84.7 43.2 43,200 655
2011 1,763 55.9 3,169,234 72.7 84.7 43.4 41,786 633
2012 1,833 58.1 3,258,172 74.0 85.0 46.7 42,958 657
2013 1,860 59.0 3,305,776 75.0 85.8 47.9 43,524 668
2014 1,900 60.2 3,383,559 76.6 86.8 50.2 44,699 683
2015 1,998 63.3 3,472,513 78.6 88.0 54.0 47,819 723
2016 2,095 66.4 3,571,061 80.7 89.0 58.7 49,851 752
2017 2,100 66.6 3,612,720 81.4 89.7 59.6 50,211 755
2018 2,101 66.6 3,653,622 82.0 90.0 60.9 50,510 756
2019 2,110 66.9 3,694,793 82.6 90.5 61.7 50,922 761
.