| Year | Establishment and Reforestation Cost | Maintenance Cost | Insurance Cost | Inspection Paths Cost | Roading Cost |
| 1985 | 66 | 66 | 70 | 120 | 66 |
| 1986 | 70 | 70 | 72 | 110 | 70 |
| 1987 | 73 | 73 | 74 | 88 | 73 |
| 1988 | 75 | 75 | 76 | 95 | 75 |
| 1989 | 76 | 76 | 78 | 101 | 76 |
| 1990 | 80 | 80 | 79 | 101 | 80 |
| 1991 | 82 | 82 | 82 | 103 | 82 |
| 1992 | 85 | 85 | 84 | 101 | 85 |
| 1993 | 87 | 87 | 86 | 96 | 87 |
| 1994 | 89 | 89 | 87 | 96 | 89 |
| 1995 | 91 | 91 | 90 | 96 | 91 |
| 1996 | 93 | 93 | 91 | 101 | 93 |
| 1997 | 95 | 95 | 93 | 95 | 95 |
| 1998 | 96 | 96 | 94 | 91 | 96 |
| 1999 | 98 | 98 | 96 | 93 | 98 |
| 2000 | 100 | 100 | 100 | 100 | 100 |
| 2001 | 105 | 105 | 106 | 113 | 105 |
| 2002 | 108 | 108 | 110 | 111 | 108 |
| 2003 | 110 | 110 | 114 | 113 | 110 |
| 2004 | 111 | 111 | 117 | 115 | 111 |
| 2005 | 115 | 115 | 121 | 124 | 115 |
| 2006 | 122 | 122 | 124 | 133 | 122 |
| 2007 | 132 | 132 | 129 | 136 | 132 |
| 2008 | 138 | 138 | 137 | 221 | 138 |
| 2009 | 141 | 141 | 139 | 185 | 141 |
| 2010 | 144 | 144 | 137 | 162 | 144 |
| 2011 | 139 | 139 | 162 | 180 | 139 |
| 2012 | 142 | 142 | 178 | 191 | 142 |
| 2013 | 141 | 141 | 172 | 210 | 141 |
| 2014 | 142 | 142 | 164 | 197 | 142 |