Update usage and download number in README.md

Author: eddelbuettel

README.md

@@ -109,13 +109,15 @@ been factored out of Rcpp into the package RcppClassic, and it is still
 available for code relying on the older interface. New development should
 always use this Rcpp package instead.
 
-Other usage examples are provided by packages using Rcpp. As of early July 2022,
-there are 2560 [CRAN](https://cran.r-project.org) packages using Rcpp, a further
-252 [BioConductor](https://www.bioconductor.org) packages in its current release
-as well as an unknown number of GitHub, Bitbucket, R-Forge, ... repositories
-using Rcpp.  All these packages provide usage examples for Rcpp. The package
-is in widespread use and has been downloaded over 61 million times (per the
-partial logs from the cloud mirrors of CRAN).
+Other usage examples are provided by packages using Rcpp. As of early January
+2023, there are 2623 [CRAN](https://cran.r-project.org) packages using Rcpp
+(corresponding to 13.7% of all packages, and 58.7% of packages containing
+compiled code), a further 252 [BioConductor](https://www.bioconductor.org)
+packages in its current release as well as an unknown number of GitHub,
+Bitbucket, R-Forge, ... repositories using Rcpp.  All these packages provide
+usage examples for Rcpp. The package is in widespread use and has been
+downloaded over 67.1 million times (per the partial logs from the cloud mirrors
+of CRAN).
 
 ### Installation