Year % of total agricultural land 2002 0.6852980269631114 2007 0.685763638980855 2012 0.6870691395771438 2017 0.6860753208165391 2018 0.5214891515045033 2019 0.40912612910177537 2020 0.40454851395180663 2021 0.38348117048785685