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11-4 BASIC STATISTICS ON URBAN PUBLIC UTILITIES
Data since 1990 have covered the public utilities of all urban units, whereas data in the preceding years only covered the urban units under the city construction department.
Item | 1985 | 1990 | 1995 | 1997 | 1998
Annual Supply of Tap Water(100 million tons) | 128 | 382.3 | 496.6 | 476.8 | 470.5
#Water Consumption for Residential use | 51.9 | 100.1 | 158.1 | 175.7 | 181
Per Capita Water Consumption for Residential use (ton) | 55.1 | 67.9 | 71.3 | 90.2 | 91.1
Percentage of Population with Access to Tap Water (％) | 81 | 89.2 | 93 | 95.2 | 96
Number of Public Transportation Vehicles (Buses and Trolley Buses etc.) (unit) | 45155 | 62215 | 136821 | 169121 | 189002
Number of Public Transportation Vehicles per 10 000 Population (unit) | 3.9 | 4.8 | 7.3 | 8.6 | 8.6
Length of Paved Roads (km) | 38282 | 94820 | 130308 | 138610 | 145163
Length of Paved Roads per 10 000 Population (km) | 3.3 | 6.4 | 7 | 7.1 | 7.3
Area of Paved Roads (10 000 sq.m) | 35872 | 89160 | 135810 | 152664 | 163993
Area of Paved Roads per 10 000 Population (10 000 sq.m) | 3.1 | 6 | 7.3 | 7.8 | 8.3
Length of Sewer Pipelines (km) | 31556 | 57787 | 110293 | 119739 | 125943
Length of Sewer Pipelines per 10 000 Population (km) | 2.7 | 3.9 | 6 | 6.1 | 6.3
Coal Gas Supply (10 000 cu.m) | 249754 | 1747065 | 1266894 | 1268944 | 1675571
Consumption of Coal Gas for Residential Use | 107060 | 274127 | 456585 | 535412 | 480734
Length of Gas Pipelines (km) | 10567 | 16312 | 33890 | 41475 | 42725
Natural Gas Supply (10 000 cu.m) | 162099 | 642289 | 673354 | 663001 | 688255
Consumption of Liquefied Gas for Residential use (10 000 ton) | 54.7 | 142.8 | 370.2 | 437.1 | 547.8
Percentage of Population with Access to Gas (%) | 22.4 | 42.2 | 70 | 75.7 | 78.8
Afforestation in Cities |  |  |  |  |
Public Green Areas (hectare) | 159291 | 474613 | 678310 | 682238 | 745654
Public Green Areas per 10 000 Population (hectare) | 13.7 | 32.2 | 36.7 | 35 | 37.5
Number of Parks and Zoos | 1026 | 1970 | 3619 | 3813 | 3990
Area of Parks and Zoos (hectare) | 21896 | 40081 | 72857 | 68933 | 73198
Enviromental Sanitation |  |  |  |  |
Volume of Garbage Disposal (10 000 tons) | 4477 | 6767 | 10748 | 10982 | 11302
Volume of Disposal of Excrement and Urine (10 000 tons) | 1731 | 2385 | 3071 | 2845 | 2915
Number of Public Lavatories per 10 000 Population | 5.8 | 6.6 | 6.1 | 5.6 | 5.4
a)Data on the public utilities per 10 000 population are based on the non-agricultural population in urban areas.