Изменения

binwidth=0.5

set yrange [0:13]

set ytics ('Rust 1.11' 1, 'C++' 2, 'Java 8' 3, 'PyPy' 4, 'Go' 5, 'node.js' 6, 'PHP7' 7, 'Ruby 2.3' 8, 'Python 3.5' 9, 'Python 2.7' 10, 'Perl' 11, 'PHP 5.6' 12)

set grid xtics