| 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | |
| Total number | 292 | 194 | 309 | 294 | 291 | 176 |
| by class of inland waterways | ||||||
| class I to IV | 292 | 194 | 309 | 294 | 291 | 176 |
| by year of construction | ||||||
| up to 1949 | 11 | 0 | 1 | 1 | 1 | 1 |
| 1950 - 1969 | 23 | 13 | 62 | 55 | 54 | 26 |
| 1970 - 1979 | 61 | 36 | 58 | 52 | 52 | 47 |
| 1980 - 1989 | 184 | 136 | 170 | 168 | 166 | 34 |
| 1990 and over | 13 | 9 | 18 | 18 | 18 | 71 |
| Carrying capacity- total (1000 tonnes) | 231,94 | 176,02 | 193,49 | 178,29 | 176,73 | 87,47 |
| by class of inland waterways | ||||||
| class I to IV | 231,94 | 176,02 | 193,49 | 177,53 | 176,73 | 87,47 |
| by year of construction | ||||||
| up to 1949 | 6,91 | 0,00 | 0,08 | 0,08 | 0,08 | 0,03 |
| 1950 - 1969 | 15,96 | 8,23 | 20,35 | 13,93 | 13,60 | 15,67 |
| 1970 - 1979 | 71,20 | 43,53 | 37,10 | 30,66 | 30,66 | 11,94 |
| 1980 - 1989 | 130,51 | 122,75 | 126,03 | 122,93 | 122,45 | 53,17 |
| 1990 and over | 7,37 | 1,52 | 9,92 | 9,93 | 9,93 | 6,66 |
Source: SPS