year,note,date,period,zaf
2008,1,2008-03-31,Jan-Mar 2008,23.24
2008,2,2008-06-30,Apr-Jun 2008,22.63
2008,3,2008-09-30,Jul-Sep 2008,22.81
2008,4,2008-12-31,Oct-Dec 2008,21.51
2009,1,2009-03-31,Jan-Mar 2009,23
2009,2,2009-06-30,Apr-Jun 2009,23.22
2009,3,2009-09-30,Jul-Sep 2009,24.45
2009,4,2009-12-31,Oct-Dec 2009,24.07
2010,1,2010-03-31,Jan-Mar 2010,25.05
2010,2,2010-06-30,Apr-Jun 2010,25.08
2010,3,2010-09-30,Jul-Sep 2010,25.43
2010,4,2010-12-31,Oct-Dec 2010,23.91
2011,1,2011-03-31,Jan-Mar 2011,24.85
2011,2,2011-06-30,Apr-Jun 2011,25.57
2011,3,2011-09-30,Jul-Sep 2011,24.97
2011,4,2011-12-31,Oct-Dec 2011,23.76
2012,1,2012-03-31,Jan-Mar 2012,25.03
2012,2,2012-06-30,Apr-Jun 2012,24.78
2012,3,2012-09-30,Jul-Sep 2012,25.18
2012,4,2012-12-31,Oct-Dec 2012,24.49
2013,1,2013-03-31,Jan-Mar 2013,25.04
2013,2,2013-06-30,Apr-Jun 2013,25.28
2013,3,2013-09-30,Jul-Sep 2013,24.5
2013,4,2013-12-31,Oct-Dec 2013,24.14
2014,1,2014-03-31,Jan-Mar 2014,25.18
2014,2,2014-06-30,Apr-Jun 2014,25.45
2014,3,2014-09-30,Jul-Sep 2014,25.41
2014,4,2014-12-31,Oct-Dec 2014,24.27
2015,1,2015-03-31,Jan-Mar 2015,26.36
2015,2,2015-06-30,Apr-Jun 2015,25.04
2015,3,2015-09-30,Jul-Sep 2015,25.5
2015,4,2015-12-31,Oct-Dec 2015,24.48
2016,1,2016-03-31,Jan-Mar 2016,26.75
2016,2,2016-06-30,Apr-Jun 2016,26.6
2016,3,2016-09-30,Jul-Sep 2016,27.06
2016,4,2016-12-31,Oct-Dec 2016,26.46
2017,1,2017-03-31,Jan-Mar 2017,27.71
2017,2,2017-06-30,Apr-Jun 2017,27.73
2017,3,2017-09-30,Jul-Sep 2017,27.72
2017,4,2017-12-31,Oct-Dec 2017,26.67
2018,1,2018-03-31,Jan-Mar 2018,26.75
2018,2,2018-06-30,Apr-Jun 2018,27.19
2018,3,2018-09-30,Jul-Sep 2018,27.49
2018,4,2018-12-31,Oct-Dec 2018,27.08
2019,1,2019-03-31,Jan-Mar 2019,27.57
2019,2,2019-06-30,Apr-Jun 2019,28.98
2019,3,2019-09-30,Jul-Sep 2019,29.14
2019,4,2019-12-31,Oct-Dec 2019,29.06
2020,1,2020-03-31,Jan-Mar 2020,30.14
2020,2,2020-06-30,Apr-Jun 2020,23.29
2020,3,2020-09-30,Jul-Sep 2020,30.78
2020,4,2020-12-31,Oct-Dec 2020,32.5
2021,1,2021-03-31,Jan-Mar 2021,32.57
2021,2,2021-06-30,Apr-Jun 2021,34.37
2021,3,2021-09-30,Jul-Sep 2021,34.86
2021,4,2021-12-31,Oct-Dec 2021,35.26
2022,1,2022-03-31,Jan-Mar 2022,34.52
2022,2,2022-06-30,Apr-Jun 2022,33.94
2022,3,2022-09-30,Jul-Sep 2022,32.88
2022,4,2022-12-31,Oct-Dec 2022,32.73
2023,1,2023-03-31,Jan-Mar 2023,32.88
2023,2,2023-06-30,Apr-Jun 2023,32.64
2023,3,2023-09-30,Jul-Sep 2023,31.91
2023,4,2023-12-31,Oct-Dec 2023,32.1