What is the data used to compute geometric return for stock ? is it data under "adj close "

This data is extract from yahoo finance stock for ABF singapore bond index fund.

- Low 0 0 . 0 0 Date Open High - 1/2/2008 1.0727 1/3/2008 1.0707 1/4/2008 1.0719 1/5/2008 1.0672 1/6/2008 1.041 - 1/7/2008 1.0275 - 1/8/2008 1.0557 1/9/2008 1.0569 1 ######## 1.0598 2 ### 1.0519 3 ##### 1.0948 4 1/1/2009 1.075 0 0 Close Adj Close Volume 0 1.0673 1.0673 o 0 1.072 1.072 0 0 1.0663 1.0663 0 0 1.0331 1.0331 0 0 1.0261 1.0261 0 0 1.052 1.052 0 1.0561 1.0561 0 0 1.0554 1.0554 0 0 1.0544 1.0544 0 0 1.0919 1.0919 0 0 1.1061 1.1061 0 1.07 1.08 1.08 418000 0 0 0 0 1.08 - Low 0 0 . 0 0 Date Open High - 1/2/2008 1.0727 1/3/2008 1.0707 1/4/2008 1.0719 1/5/2008 1.0672 1/6/2008 1.041 - 1/7/2008 1.0275 - 1/8/2008 1.0557 1/9/2008 1.0569 1 ######## 1.0598 2 ### 1.0519 3 ##### 1.0948 4 1/1/2009 1.075 0 0 Close Adj Close Volume 0 1.0673 1.0673 o 0 1.072 1.072 0 0 1.0663 1.0663 0 0 1.0331 1.0331 0 0 1.0261 1.0261 0 0 1.052 1.052 0 1.0561 1.0561 0 0 1.0554 1.0554 0 0 1.0544 1.0544 0 0 1.0919 1.0919 0 0 1.1061 1.1061 0 1.07 1.08 1.08 418000 0 0 0 0 1.08