Table
Municipality-State-Reporting: wastewater | 2008 | 2011 | 2012 | Change in per cent |
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| 2008 - 2012 | 2011 - 2012 |
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| Percentage of population connected to municipal wastewater facilities | 83.4 | 84.1 | 83.9 | 0.6 | -0.2 |
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| Connection density of wastewater pipeline system (inhabitants/km) | 114 | 117 | 118 | 3.5 | 0.9 |
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| Percentage of total wastewater pipeline system renewed, 3-year-average | .. | 0.46 | 0.48 | .. | 4.3 |
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| Number of sewage overflow in sewage pipelines and manhole covers per km pipeline | 0.079 | 0.067 | 0.054 | -31.6 | -19.4 |
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| Income from fees per inhabitant connected to municipal wastewater facilities | 1 236 | 1 376 | 1 429 | 15.6 | 3.9 |
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| Operating expenditures per inhabitant connected to municipal wastewater facilities | 853 | 940 | 988 | 15.8 | 5.1 |
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