Weighted-average number of ordinary shares in thousands:
For the year ended December 31
2017
2016
2015
Shares thousands
Balance as at January 1
1,274,298
1,272,516
1,270,408
Shares issued during the year
1,054
-
1,174
Shares vested
720
779
42
Weighted average number of ordinary shares used in computation of the basic earnings per share
1,276,072
1,273,295
1,271,624