Pakistan has a population of over 199 million as of 2014, with an annual growth rate of 1.49%. The average life expectancy is 63 years, with males living slightly less on average than females. Over a third of the population is 14 years old or younger, while 59% are between 15 and 64 years old. Punjab province has the highest human development at 0.670, while Baluchistan has the lowest at 0.556. Islamabad and Lahore have very high human development ratings above 0.8, while several other districts like Jhelum and Haripur have high ratings around 0.75.