Usually, VMware does not track the exact numbers of each certification and each path.
There is an exception for the VCDX level. Because it's an elite level, there is a certification portal called VCDX Directory (https://vcdx.vmware.com/), with all of the details of each VCDX.
Also, there is an interesting infographic about VCDX, available at https://blogs.vmware.com/education/2018/02/15/vcdxs-around-world-wheres-nearest-vmware-certified-design-expert/.
VMware sometimes publishes stats on the other certifications.
VCP-DCV is our most popular certification, with more than 120,000 professionals certified around the world, in more than 190 countries.
In the past, VMware has also published some infographics about the VCP and VCAP certifications, which can be seen in the following blog posts:
