4   Number of people connected to municipal sewerage systems and separate (private) treatment plants, and proportion connected to municipal sewerage systems. 1999
  Number of people
connected to
municipal sewerage
systems		 Number of people
connected to
separate (private)
treatment
plants		 Proportion
connected to
municipal sewerage
systems
      Prosent
Whole country (01-20) 3 561 353 895 272 80
North Sea counties (01-10) 2 043 289 405 133 83
Other counties (11-20) 1 518 064 490 139 76
       
01 Østfold 210 526 34 455 86
02 Akershus 407 172 52 547 89
03 Oslo 506 341 1 893 100
04 Hedmark 122 580 76 418 62
05 Oppland 108 841 70 137 61
06 Buskerud 180 459 46 052 80
07 Vestfold 179 406 42 725 81
08 Telemark 127 296 34 123 79
09 Aust-Agder 75 067 22 532 77
10 Vest-Agder 125 601 24 252 84
11 Rogaland 314 959 44 635 88
12 Hordaland 333 336 111 405 75
14 Sogn og Fjordane 61 054 40 419 60
15 Møre og Romsdal 173 094 71 421 71
16 Sør-Trøndelag 206 213 54 903 79
17 Nord-Trøndelag 92 580 32 395 74
18 Nordland 170 980 68 614 71
19 Troms 105 002 51 104 67
20 Finnmark 60 846 15 243 80
Source: Waste water treatment statistics, Statistics Norway.

Explanation of symbols