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Complaints on Blockage of Sewers Received and Dealt With

Year
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
Length of sewer under management (km)
955
1,022
1,058
1,094
1,115
1,143
1,161
1,204
1,251
1,292
1,332
1,384
1,449
Sewer complaints (No.)
34,465
30,732
28,999
28,785
30,042
30,483
28,883
30,523
31,323
29,766
30,258
26,869
23,872