For most of Wyoming's territorial and state history, cattle ranchers have dominated the economy, even though the livestock industry is not large by national standards. In 2003, Wyoming had an estimated 1.29 million cattle and calves, valued at $980.4 million. During 2002, there were 115,000 hogs and pigs, valued at $9.66 million. Wyoming farms and ranches produced 33.8 million lb (15.3 million kg) of sheep and lambs in 2001, and an estimated 3.75 million lb (1.7 million kg) of shorn wool in 2002. In 2001, Wyoming farmers sold 41,000 lb (18,600 kg) of chicken and produced 63 million lb (28.6 million kg) of milk.