ETA’s level of activity has changed over the years. The group has attempted several ceasefires, including a 14-month one that lasted until December 1999. While there have been a number of ETA attacks since 2000, the group has claimed fewer victims. It is believed to be shrinking. Spanish officials believe that recent crackdowns have led to a serious weakening of the group and sense that its future as a terrorist organization may be limited. There are more than one hundred suspected ETA members in Spanish prisons today.