Table 2. Extent of forest cover and annual rate of change (r) mapped within the reduced area covered by the 1992–1993 topographic maps, both corrected and uncorrected for scale differences, and the mean of the results. 1960s maps 1981 maps r x 100, 1960s–1981 1992–1993 maps r x 100, 1981–1993 ha % ha % ha % Not corrected to scale 161 462 97.3 151 958 91.6 -0.467 153 954 92.8 0.110 Corrected to the 1981 map scale 155 057 93.4 151 958 91.6 -0.155 151 465 91.3 -0.027 Mean 158 259 95.3 151 958 91.6 -0.311 152 709 92.05 0.042