| Year | Net volume of water supplied by water supply industry (million m3) | Losses during transport (million m3) |
|---|---|---|
| 2005 | 533.5 | 126 |
| 2006 | 528.7 | 135.8 |
| 2007 | 429.1 | 170.4 |
| 2008 | 437.4 | 172.4 |
| 2009 | 427.4 | 171.4 |
| 2010 | 427.5 | 171.7 |
| 2011 | 307.9 | 387.7 |
| 2012 | 275.6 | 421 |
| 2013 | 301.4 | 397.3 |
| 2014 | 314.2 | 382.5 |
| 2015 | 324 | 346 |
| 2016 | 328.1 | 313.2 |
| 2017 | 318.6 | 290.5 |