Complex sentence: The all-time record for lowest number of goals scored to earn the award, however, is 18 goals; this was achieved during the 1997--98 and 1998--99 seasons, when the award was shared between three players both times.
Split into simpler sentences: The all-time record for lowest number of goals scored to earn the award, however, is 18 goals. This was achieved during the 1997--98 and 1998--99 seasons, when the award was shared between three players both times.