How to keep all history of 'apt-get install ..." command ?

I would like to have available all history of software installation on my PC (Ubuntu).
But by default Ubuntu keeps 'apt-get'-logs only for last 12 months. After that time 'logrotate' will delete older logs.

To fix it you should change a file '/etc/logrotate.d/apt':

diff --git a/logrotate.d/apt b/logrotate.d/apt
index 9a6e5d1..3021b99 100644
--- a/logrotate.d/apt
+++ b/logrotate.d/apt
@@ -7,7 +7,7 @@
 }
 
 /var/log/apt/history.log {
-  rotate 12
+  rotate 1200
   monthly
   compress
   missingok

So for now the logs will be kept during 100 years (1200 months)! :)