| 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | |
|---|---|---|---|---|---|---|
| Total number | 46 | 44 | 40 | 32 | 31 | 30 |
| by class of inland waterways | ||||||
| class I to IV | 46 | 44 | 40 | 32 | 31 | 30 |
| by year of construction | ||||||
| up to 1949 | 2 | 4 | 3 | 3 | 2 | 3 |
| 1950 - 1969 | 16 | 14 | 14 | 12 | 12 | 11 |
| 1970 - 1979 | 22 | 20 | 19 | 16 | 16 | 13 |
| 1980 - 1989 | 2 | 2 | 2 | 0 | 0 | 0 |
| 1990 - 1999 | 4 | 4 | 2 | 1 | 1 | 3 |
| 2000 - 2009 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total registered tonnes (thous. tonnes) | 44,0 | 44,4 | 40,0 | 34,2 | 32,9 | 31,4 |
| by class of inland waterways | ||||||
| class I to IV | 44,0 | 44,4 | 40,0 | 34,2 | 32,9 | 31,4 |
| by year of construction | ||||||
| up to 1949 | 2,0 | 3,5 | 3,0 | 2,9 | 1,8 | 3,0 |
| 1950 - 1969 | 11,0 | 11,8 | 12,0 | 11,6 | 11,4 | 9,8 |
| 1970 - 1979 | 26,0 | 23,3 | 22,0 | 18,5 | 18,5 | 15,2 |
| 1980 - 1989 | 2,0 | 2,2 | 2,0 | 0,0 | 0,0 | 0,0 |
| 1990 - 1999 | 4,0 | 3,6 | 1,0 | 1,2 | 1,2 | 3,5 |
| 2000 - 2009 | 0,0 | 0,0 | 0,0 | 0,0 | 0,0 | 0,0 |
| Total power (thous. kW) | 23,0 | 19,6 | 17,0 | 13,4 | 13,2 | 13,2 |
| by class of inland waterways | ||||||
| class I to IV | 23,0 | 19,6 | 17,0 | 13,4 | 13,2 | 13,2 |
| by year of construction | ||||||
| up to 1949 | 1,0 | 1,6 | 1,0 | 1,3 | 0,9 | 1,2 |
| 1950 - 1969 | 6,0 | 5,3 | 5,0 | 4,2 | 4,4 | 3,9 |
| 1970 - 1979 | 10,0 | 9,1 | 9,0 | 7,3 | 7,3 | 5,9 |
| 1980 - 1989 | 1,0 | 1,5 | 1,0 | 0,0 | 0,0 | 0,0 |
| 1990 - 1999 | 2,0 | 2,2 | 1,0 | 0,7 | 0,7 | 2,2 |
| 2000 - 2009 | 0,0 | 0,0 | 0,0 | 0,0 | 0,0 | 0,0 |