For the last 50 years Japan has given a commemorative silver cup to each of its citizens on their 100th birthday. The number of people over 100 back then was limited but that number has exploded recently as Japan now has on average the oldest population on Earth. Japan also faces an economy burdened by a heavy national debt. Those factors have combined to cause the Japanese government to suspend the traditional gift as it has become too expensive to continue.
This site has posted previously on the increasing population crisis in Japan. To see the original post follow the link below:
Human Geography: The Declining and Aging Population of Japan