> rp.freq('game', rapport::ius2008)
game N % Cumul. N Cumul. %
1 never 352 51.994092 352 51.99409
2 very rarely 128 18.906942 480 70.90103
3 rarely 32 4.726736 512 75.62777
4 sometimes 60 8.862629 572 84.49040
5 often 37 5.465288 609 89.95569
6 very often 35 5.169867 644 95.12555
7 always 33 4.874446 677 100.00000
**Missing** ?
8 Total 677 100.000000 677 100.00000
