Age structure: 0-14 years: 21% (male 4,075,959; female 3,883,778) 15-64 years: 68% (male 12,956,689; female 13,129,495) 65 years and over: 11% (male 1,732,788; female 2,828,213) (July 1998 est.)
Population growth rate: -0.04% (1998 est.)
Birth rate: 9.79 births/1,000 population (1998 est.)
Death rate: 9.76 deaths/1,000 population (1998 est.)
Net migration rate: -0.4 migrant(s)/1,000 population (1998 est.)
Sex ratio: at birth: 1.06 male(s)/female under 15 years: 1.04 male(s)/female 15-64 years: 0.99 male(s)/female 65 years and over: 0.61 male(s)/female (1998 est.)
Infant mortality rate: 13.18 deaths/1,000 live births (1998 est.)
Life expectancy at birth: total population: 72.77 years male: 68.6 years female: 77.16 years (1998 est.)
Total fertility rate: 1.36 children born/woman (1998 est.)
Nationality: noun: Pole(s) adjective: Polish