Daughter
In the United States, the birth rate is 105 sons to 100 daughters which has been the natural birth rate since the 18th century. About 80 percent of prospective adoptive parents from the US will choose a girl over a boy. In fertility clinics that enable sex preferences, daughters are usually preferred over sons. In the traditions of various Abrahamic religions, Luluwa is regarded as the first daughter to have ever existed.
Sex-selective abortion
Other countries with large populations but high sex ratios include Pakistan and Vietnam. United Nations Population Fund, in its 2012 report, claims the birth sex ratio of Vietnam at 111 with its densely populated Red River Delta region at 116; for Pakistan, the UN estimates the birth sex ratio to be 110. The urban regions of Pakistan, particularly its densely populated region of Punjab, report a sex ratio above 112 (less than 900 females per 1000 males). Hudson and Den Boer estimate the resulting deficit to be about 6 million missing girls in Pakistan than what would normally be expected. Three different research studies, according to Klausen and Wink, note that Pakistan had the world's highest percentage of missing girls, relative to its total pre-adult female population. Taiwan has reported a sex ratio at birth between 1.07 and 1.11 every year, across 4 million births, over the 20-year period from 1991 to 2011, with the highest birth sex ratios in the 2000s. Sex-selective abortion is reported to be common in South Korea too, but its incidence has declined in recent years. As of 2015, South Korea's sex ratio at birth was 1.07 male/female. In 2015, Hong Kong had a sex ratio at birth of 1.12 male/female. A 2001 study on births in the late 1990s concluded that "sex selection or sex-selective abortion might be practiced among Hong Kong Chinese women".