See the newest 2012 figure (updated January 2015) which now includes 70 countries.
The United Nations released their annual World Demographics report that includes marriage and divorce rates for countries around the world. As usual the numbers are incomplete as many countries do not report in time for this report, but the report also updates the 2011 data and these are more complete.
For the divorce rates, 36 countries have reported. Among these countries, the highest rate is 4.1 divorces/population in Belarus which is the same as 2011. The next highest is 3.6 in Lativa which is lower than for 2011.
This graph shows the divorce rates from highest to lowest in 2012 for all reporting countries in 2012 and another graph here for 2011.