Iran Iran, Pupil-teacher ratio, lower secondary

Year Value Rank Change Change,%
2017 21.3 23 +0.239 +1.13%
2016 21.1 25 +5.03 +31.3%
2014 16.1 31 -0.265 -1.62%
2013 16.3 32 -5.37 -24.8%
2008 21.7 27 +1.58 +7.85%
2007 20.1 29 +1.09 +5.75%
2006 19 31 +0.307 +1.64%
2005 18.7 30 -0.691 -3.56%
2004 19.4 38 -12.5 -39.2%
1997 31.9 6

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