Stem Cell Tree Growth
Bars indicate the number of nodes added to the tree each quarter since the establishment of the Academic Family Tree.
Compare to tree:

Stem Cell Tree Nodes: Quarterly Growth

105-
84-
63-
42-
21-

Jan 07 Jan 16 Jan 17 Jul 18 Jul 19 Jan 20 Jan 21 Jul 21 Jul 24
Quarter
 Stem Cell Tree 

Node vs. connection growth
It's also interesting to compare the rate of growth of nodes vs. connections. So far, they've grown at a similar pace, but as the tree is getting larger, the number of new connections seems to be gradually outpacing the number of new nodes.

Stem Cell Tree: Nodes vs. Connections

105-
84-
63-
42-
21-

Apr 08 Jan 17 Jul 17 Oct 17 Jan 18 Apr 18 Jul 18 Oct 18 Jul 19 Oct 19 Jan 20 Apr 20 Jan 21 Jul 21 Oct 22
Quarter
 New nodes  New connections 

Daily growth
A bit more detail about what has been happening during the last month.

Stem Cell Tree: Growth during last 30 days

0-
0-
0-
0-
0-

18 19 20 21 22 23 24 25 26 27 28 29 30 31 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16
Day
 Stem Cell Tree