Year % of total agricultural land 2002 0.17210526315789473 2007 0.1701612534831666 2009 0.19688456443287197 2012 0.19621723013710865 2017 0.34087992273849127 2018 0.3924631398218693 2019 0.4432561433630218 2020 0.5721648245519906