2021 306 vehicles 2020 1,023 vehicles 2019 1,584 vehicles 2018 2,001 vehicles 2017 6,320 vehicles 2016 1,206 vehicles 1995 2,156 vehicles 1994 3,021 vehicles 1993 2,075 vehicles 1992 1,110 vehicles 1991 682 vehicles 1990 2,474 vehicles 1989 6,200 vehicles 1988 1,685 vehicles