Sample #1
The approximate age is 5700 years.

Sample #2
The approximate age is 26000 years.

Sample #3
The approximate age is 0 years.

Sample #4
The approximate age is 100 years.

Sample #5
The approximate age is 0 years.

Sample #6
The approximate age is 74000 years.

Sample #7
The approximate age is 54000 years.

Sample #8
The approximate age is 9700 years.

Sample #9
The approximate age is 9800 years.

Sample #10
The approximate age is 9900 years.

Sample #11
The approximate age is 10000 years.

Sample #12
The approximate age is 10000 years.

Sample #13
The approximate age is 10000 years.

Sample #14
The approximate age is 11000 years.