Crystallography 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:

Crystallography Tree Nodes: Quarterly Growth

159-
127-
95-
64-
32-

Jan 08 Jul 08 Jul 11 Jan 12 Jul 12 Jan 13 Jul 13 Jan 14 Jul 14 Jan 15 Jul 15 Jan 16 Jul 16 Jan 17 Jul 17 Jan 18 Jul 18 Jan 19 Jul 19 Jan 20 Jul 20
Quarter
 Crystallography 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.

Crystallography Tree: Nodes vs. Connections

159-
127-
95-
64-
32-

Oct 05 Apr 11 Jul 11 Oct 11 Jan 12 Apr 12 Jul 12 Oct 12 Jan 13 Apr 13 Jul 13 Oct 13 Jan 14 Apr 14 Jul 14 Oct 14 Jan 15 Apr 15 Jul 15 Oct 15 Jan 16 Apr 16 Jul 16 Oct 16 Jan 17 Apr 17 Jul 17 Oct 17 Jan 18 Apr 18 Jul 18 Jan 19 Apr 19 Jul 19 Oct 19 Jan 20 Apr 20 Jul 20 -2000 -2000 -2000 -2000 -2000
Quarter
 New nodes  New connections 

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

Crystallography Tree: Growth during last 30 days

2-
2-
1-
1-
0-

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 17 18 19 20 21
Day
 Crystallography Tree