The Evolution of scoring in Rugby Union*

Years      Try  Conv   PK    DG

1890-91     1     2     2     3
1891-93     2     3     3     4
1894-1905   3     2     3     4
1905-70     3     2     3     3
1971-92     4     2     3     3
1992-       5     2     3     3

*Taken from Rugby Magazine, Nov. 1991, with a little editing done for the most recent change