| Chart-03 | |||||||||||||
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| Year | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | |||
| Mahaweli | 4.52 | 5.05 | 4.90 | 4.70 | 4.90 | 4.98 | 5.14 | 5.08 | 5.35 | 5.423 | |||
| National | 3.53 | 3.67 | 3.55 | 3.64 | 3.79 | 3.83 | 3.99 | 3.79 | 4.00 | 3.955 | |||
| Chart - 04 | |||||||||||||
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| Year | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | |||
| Mahaweli | 4.37 | 4.53 | 4.39 | 4.68 | 4.48 | 4.97 | 4.84 | 4.77 | 5.20 | 4.958 | |||
| National | 3.10 | 3.53 | 3.81 | 3.75 | 3.85 | 4.10 | 3.74 | 3.71 | 4.23 | 3.976 | |||
| Source:- Depatment of Census & Statistics | |||||||||||||