|Season|Tier|Division|Place|
|---|---|---|---|
|1981/82|4|3ª|17th|
|1982/83|5|Regional|—|
|1983/84|4|3ª|1st|
|1984/85|4|3ª|2nd|
|1985/86|4|3ª|1st|
|1986/87|3|2ªB|10th|
|1987/88|3|2ªB|1st|
|1988/89|2|2ª|18th|
|1989/90|3|2ªB|7th|
|1990/91|3|2ªB|8th|
|1991/92|3|2ªB|20th|
|1992/93|4|3ª|14th|
|1993/94|4|3ª|19th|
|1994/95|5|Reg. Pref.|9th|
|1995/96|5|Reg. Pref.|4th|
|1996/97|5|Reg. Pref.|1st|
|1997/98|5|Reg. Pref.|2nd|

Question: how many seasons are shown in this chart?
Answer: 17