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| 2011 | 2012 | 2013* | 2014** | 2015** |
| Number of biogas plants (thereof biomethane injection plants) | 7180 (77) | 7500 (109) | 7850 (144) | 7944 (153) | 8005 (156) |
| Number of additional installations per year | 1270 | 340 | 335 | 94 | 61 |
| Installed electric capacity including electricity from biomethane injection (MW) (capacity relevant for electric work) | 3100 | 3350 | 3543 (3510) | 3859 (3646) | 4054 (3654) |
| Additional electric capacity of new installations per year (MW) (relevant for electric work) | 806 | 255 | 158 | 136 | 8 |
| Annual generation of electricity (TWh) | 19.1 (net) | 22.8 (net) | 26.42 (gross) | 27.55 (gross) | 27.88 (gross) |
| Households supplied with electricity from biogas (million) | 5.5 | 6.5 | 7.5 | 7.9 | 8.0 |
| Share in total electricity generation (%) | 3.2 | 3.9 | 4.1 |
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| Jobs | 63,000 | 45,000 | 41,000 | 41,000 | 39,000 |