Table:
text: Bulgarian National Badminton Championships
Past winners
Past winners
Year_ Mens_singles Womens_singles Mens_doubles Womens_doubles Mixed_doubles
1985 Jeliazko Valkov Diana Koleva Ilko Orechov Nanko Ertchopov Diana Koleva Zlatka Valkanova Jeliazko Valkov Dobrinka Peneva
1986 Jeliazko Valkov Diana Koleva Jeliazko Valkov Dinko Dukov Diana Koleva Petia Borisova Ilko Okreshkov Elena Velinova
1987 Stanimir Boitchinov Diana Koleva Jeliazko Valkov Dinko Dukov Diana Koleva Diana Filipova Jeliazko Valkov Gabriela Spasova
1988 Jeliazko Valkov Diana Koleva Jeliazko Valkov Dinko Dukov Diana Koleva Emilia Dimitrova Jeliazko Valkov Irina Dimitrova
1989 Stanimir Boitchinov Diana Koleva Jeliazko Valkov Dinko Dukov Diana Koleva Emilia Dimitrova Jeliazko Valkov Diana Filipova

text: Bulgarian National Badminton Championships
Past winners
Past winners
Year_ Mens_singles Womens_singles Mens_doubles Womens_doubles Mixed_doubles
1990 Stoyan Ivantchev Diana Koleva Slantcezar Tzankov Anatoliy Skripko Diana Koleva Emilia Dimitrova Anatoliy Skripko Diana Filipova
1991 Stoyan Ivantchev Victoria Hristova Stoyan Ivantchev Anatoliy Skripko Diana Koleva Emilia Dimitrova Jeliazko Valkov Emilia Dimitrova
1992 Jassen Borissov Diana Koleva Jeliazko Valkov Sibin Atanasov Diana Koleva Diana Filipova Slantchezar Tzankov Diana Filipova
1993 Todor Velkov Dimitrinka Dimitrova Boris Kesov Anatoliy Skripko Victoria Hristova Nelly Nedjalkova Svetoslav Stoyanov Emilia Dimitrova
1994 Mihail Popov Victoria Hristova Svetoslav Stoyanov Mihail Popov Raina Tzvetkova Emilia Dimitrova Svetoslav Stoyanov Raina Tzvetkova
1995 Todor Velkov Neli Nedialkova Svetoslav Stoyanov Mihail Popov Raina Tzvetkoa Victoria Hristova Svetoslav Stoyanov Raina Tzvetkova

Question: Among the Bulgarian national badminton championships, name the number of years in women's doubles that Diana Koleva, Emilia Dimitrova and Jeliazko Valkov were?