Since then, the prize has been awarded to one person every two years.
The prize was awarded for the first time in 2010.
As of 2009, the prize has been awarded 633 times.
In certain years, such as 1935 and 1937, no prize was awarded.
No prize was awarded in 1986 and between 1995 to 2003.
The second prize was awarded to one of the girls.
No individual may be awarded the prize more than once.
Up to now she has been awarded the prize a lot of times.
Since 1990, however, the prize has been awarded every year.
The prize is awarded every second year to a firm or company.