The development of concepts like the eight-hour day[?] and the limited working week has meant that modern industrial mankind has increasingly the need to occupy itself outside sleep and work. The leisureindustry has arisen to cater for the spending of this time.
... 64, and 7.0% who are 65 years of age or older. The median age is 36 years. For every 100 females there are 92.3 males. For every 100 females age 18 and over, there are ...