| Language | Experience | Median Monthly Commits | Median Monthly Lines Changed | Total Commits | Total Lines Changed | Comment Ratio | |
|---|---|---|---|---|---|---|---|
| C | 20y 2m | 43 | 1,186 | 12,866 | 524,267 | 21.4% | |
| Make | 18y 1m | 11 | 358 | 2,863 | 200,619 | 6.5% | |
| shell script | 17y 0m | 13 | 295 | 3,415 | 213,252 | 16.2% | |
| Automake | 16y 8m | 10 | 44 | 2,419 | 21,043 | 11.7% | |
| Perl | 15y 4m | 4 | 49 | 1,086 | 37,885 | 22.4% | |
| Autoconf | 15y 3m | 11 | 212 | 2,930 | 336,725 | 3.9% | |
| C++ | 5y 11m | 2 | 14 | 157 | 14,867 | 37.9% | |
| TeX/LaTeX | 5y 4m | 2 | 92 | 141 | 41,778 | 35.2% | |
| Python | 11m | 1 | 9 | 17 | 121 | - | |
| XML | 11m | 1 | 2 | 12 | 151 | - | |
| Emacs Lisp | 11m | 1 | 0 | 12 | 67 | - | |
| Assembly | 9m | 1 | 0 | 11 | 179 | - | |
| HTML | 8m | 1 | 23 | 14 | 1,383 | 0.0% | |
| AWK | 7m | 1 | 0 | 11 | 12 | - | |
| DOS batch script | 7m | 1 | 0 | 8 | 20 | - | |
| Objective Caml | 6m | 3 | 42 | 48 | 980 | 13.5% | |
| Java | 5m | 1 | 0 | 5 | 0 | - | |
| DCL | 4m | 1 | 29 | 4 | 128 | - | |
| CSS | 3m | 1 | 22 | 3 | 244 | 1.6% | |
| XSL Transformation | 3m | 1 | 0 | 3 | 10 | - | |
| Eiffel | 2m | 8 | 75 | 16 | 150 | - | |
| JavaScript | 2m | 1 | 1,208 | 2 | 2,416 | 5.8% | |
| PHP | 2m | 1 | 7 | 2 | 14 | - | |
| Objective-C | 2m | 1 | 3 | 2 | 6 | - | |
| Augeas | 2m | 1 | 1 | 2 | 1 | - | |
| Ruby | 1m | 6 | 27 | 6 | 27 | - | |
| Modula-2 | 1m | 1 | 23 | 1 | 23 | - | |
| Tcl | 1m | 1 | 5 | 1 | 5 | - | |
| Prolog | 1m | 1 | 2 | 1 | 2 | - | |
| All Languages | 20y 6m | 126 | 3,077 | 35,658 | 1,396,375 | 15.6% |
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