| Year,Syrian Arab Republic,Japan
|
| 1960,27.7995883386008,nan
|
| 1964,19.2080913713605,nan
|
| 1969,21.6902412446382,nan
|
| 1973,25.7681776696075,9.47029003835423
|
| 1978,31.2266510234956,8.87459428531304
|
| 1982,24.9302203872769,13.0930692657642
|
| 1987,28.936200200451,7.03578881944314
|
| 1991,32.0739880088842,8.14327654064587
|
| 1996,38.0882005972292,8.93812314202219
|
| 2000,29.1688360786759,9.09887738115494
|
| 2005,39.090623045887,12.4140588557406
|
| 2009,30.8844152727114,11.9706007858756
|
| 2014,47.2486429496201,20.0127792201784
|
| 2018,35.7420714018735,18.2949862035848
|
| 2023,nan,23.2992883238654
|
|
|
