Kerala produces 97% of the national output of black pepper[147] and accounts for 85% of the natural rubber in the country.[148][149] Coconut, tea, coffee, cashew, and spices—including cardamom, vanilla, cinnamon, and nutmeg are the main agricultural products.[4]: 74 [150][151][152][153][154] Around 80% of India's export quality cashew kernels are prepared in Kollam.[155] The key cash crop is Coconut and Kerala ranks first in the area of coconut cultivation in India.[156] In 1960–61, about 70% of the Coconuts produced in India were from Kerala, which have reduced to 42% in 2011–12.[156] Around 90% of the total Cardamom produced in India is from Kerala.[97] India is the second-largest producer of Cardamom in world.[97] About 20% of the total Coffee produced in India are from Kerala.[100] The key agricultural staple is rice, with varieties grown in extensive paddy fields.[157] Home gardens made up a significant portion of the agricultural sector.[158] Related animal husbandry is touted by proponents as a means of alleviating rural poverty and unemployment among women, the marginalised, and the landless.[159][160] The state government promotes these activities via educational campaigns and the development of new cattle breeds such as the Sunandini.[161][162] Though the contribution of the agricultural sector to the state economy was on the decline in 2012–13, through the strength of the allied livestock sector, it has picked up from 7.0% (2011–12) to 7.2%.