Year ranges , like all ranges , are separated by an en dash : do not use a hyphen or slash -LRB- , not or -RRB- .

Year ranges , like other date ranges , are separated by an en dash -LRB- do not use a hyphen or slash -LRB- `` NUMBER@1 -- NUMBER@2 '' or `` NUMBER@1 -- NUMBER@3 '' , not `` NUMBER@4 '' or `` NUMBER@5 '' -RRB- .
