In the Indian census of 2001, the Parsis numbered 69,601, representing about 0.006% of the total population of India, with a concentration in and around the city of Mumbai. Due to a low birth rate and high rate of emigration, demographic trends project that by 2020 the Parsis will number only about 23,000 or 0.002% of the total population of India. By 2008, the birth-to-death ratio was 1:5; 200 births per year to 1,000 deaths. India's 2011 Census recorded 57,264 Parsi Zoroastrians.