Legal observers estimate the hearing will last three to five days.
In the early 1980s, some observers estimated that up to 60 percent of Paraguayans were living outside the country.
Western observers estimated that more than 10,000 people died that year.
Other observers estimated the toll to be much higher.
The number of candidates was 2,094, though observers estimated voter turnout to be only 13-15%.
Human rights organizations and observers generally estimate there are 2,000 or more people in China imprisoned for political crimes.
I think we should try to understand the situation in Italy, if it really is as bad as many observers estimate.
Observers estimated voter turnout at only 54% and found the campaign to be "neither free nor fair".
Other observers estimate that up to 20 percent of the two million former Baathists may be involved in the insurgency.
Observers estimated its magnitude as around 0, and tail lengths of up to 80 degrees were reported.