17-9  Basic Statistics on Urban Environment and Sanitation in Cities
Item	1995	2000	2002
Number of Employed Persons (persons)	3340	5010	9116
Environmental Sanitation Equipment (unit)	566	767	871
Number of Public Lavatories (unit)	1147	1684	1877
Number of Public Lavatories Per 10 000 Population (unit)	3.5	4.7	4
Area under Cleaning Program (10 000 sq.m)	1743	3224	4293
Volum of Garbage Disposal (10 000 tons)	198	259	321
Volum of Excrement and Urine Disposal (10 000 tons)	26	16	4.3
Note: The number of employment before the year 2001 refers to the number of employment at the end of the year.