Year Minimum (m²) Maximum (m²) Mean (m²) Total area (km²) Dissection degree (%) Growth ratio (%) Decay ratio (%)
2009 6.5 230.71 49.12 0.0566 0.17
2012 4.64 246.86 47.34 0.0968 0.29 70.36 23.85
2018 4.64 230 46.05 0.1111 0.33 56.29 43.31
2021 5.36 209.5 46.36 0.1072 0.32 48.43 51.03