Top 25 Prospects in the Last Two Years

WTF do these numbers mean?

1
Last Updated: August 5, 2018
1.037
2
Last Updated: August 5, 2018
.960
3
Last Updated: August 5, 2018
.924
4
Last Updated: August 5, 2018
.904
5
Last Updated: May 21, 2018
.890
6
Last Updated: March 29, 2017
.846
7
Last Updated: August 5, 2018
.844
8
Last Updated: August 5, 2018
.797
9
Last Updated: August 5, 2018
.793
10
Last Updated: August 5, 2018
.791
11
Last Updated: May 21, 2018
.789
12
Last Updated: March 29, 2017
.784
13
Last Updated: July 19, 2018
.755
14
Last Updated: August 5, 2018
.736
15
Last Updated: August 5, 2018
.721
16
Last Updated: August 5, 2018
.717
17
Last Updated: August 5, 2018
.711
18
Last Updated: August 5, 2018
.702
19
Last Updated: August 5, 2018
.702
20
Last Updated: May 21, 2018
.702
21
Last Updated: August 27, 2017
.701
22
Last Updated: August 5, 2018
.692
23
Last Updated: May 21, 2018
.691
24
Last Updated: March 29, 2017
.690
25
Last Updated: August 5, 2018
.686

What Jeff thinks.