This widespread practice is polluting and wasteful.[86] Despite covering only 1.53%[9] of its geographical area, Punjab makes up for about 15-20%[87][88][89][90] of India's wheat production, around 12%[91][92][93][94] of its rice production, and around 5%[87][95][96][97] of its milk production, being known as India's breadbasket.[98][99] About 80%[100]-95%[101] of Punjab's agricultural land is owned by its Jat Sikh community despite it only forming 21%[102] of the state's population. About 10% of Punjab's population is made up of migrants from poorer states to the southeast such as Uttar Pradesh and Bihar who work as farm labourers.[103]