This began a 20 year period of growth and change for the organization.

In a 10 year period before 2011, the population increased by 46%.

However, in the 30 year period between 1980 and 2010, the average was just 22 days.

The project is expected to cost £30 million over a five year period.

They had to stay in a same room while not allowed to touch each other until the end of the one year period.

The first took place during a three year period, 1913- 1916.

The site is to be developed over a 10 year period.

Over a two year period this approach was used in 40 such patients.

Whether you are going to notice a 1% change in a 50-100 year period is another matter.

The program will serve 150 families over a two year period.