Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| date (dd.mm.yyyy) | Tail number | Location | Fatalities | Brief description |
| --- | --- | --- | --- | --- |
| 19.02.1973 | CCCP-85023 | Prague | 66/100 | Landed 470 m short of the runway |
| 03.1973 | n.d. | near Kiev | 0/n.d. | Crashed |
| 07.05.1973 | CCCP-85030 | Vnukovo | 0/6 | Crashed during training flight |
| 10.07.1974 | SU-AXB | Cairo | 6/6 | Crashed during training flight |
| 01.06.1976 | CCCP-85102 | Malabo | 46/46 | Crashed into a mountain on final approach |
| 1976 | CCCP-85020 | Kiev | 0/n.d. | Rough landing, written off. Now in museum |
| 23.03.1978 | LZ-BTB | near Damascus | 4/4 | Crashed on final approach |
| 18.02.1978 | CCCP-85087 | Novosibirsk | 0/n.d. | Fire onboard |
| 01.03.1980 | CCCP-85103 | Orenburg | 0/161 | Rough landing |
| 07.07.1980 | CCCP-85355 | Alma-Ata | 164/164 | Crashed at take-off |
| 07.08.1980 | YR-TPH | Mauritania | 1/168 | Ditched 300 m short of runway |
| 08.10.1980 | CCCP-85321 | Chita | 0/n.d. | Rough landing |
| 13.06.1981 | CCCP-85029 | Bratsk | 0/n.d. | Overran on landing, fuselage broke into two |
| 21.10.1981 | HA-LCF | Prague | 0/81 | Rough landing due to crew error |
| 1986 | 7O-ACN | Aden | n.d. | Overran on landing, never repaired |
| 18.01.1988 | CCCP-85254 | Krasnovodsk | 11/143 | Rough landing, plane broke into two |
| 08.03.1988 | CCCP-85413 | Veshchevo | 9/n.d. | Blown up by hijackers (Ovechkin family) |
| 24.09.1988 | CCCP-85617 | Norilsk | 0/n.d. | Rough landing, turned into training mock-up |
| 09.02.1989 | YR-TPJ | Bucharest | 5/5 | Crashed at take-off due to engine failure |
| 20.10.1990 | CCCP-85268 | Kutaisi | 0/171 | Nosegear collapsed due to overloading |
| 14.09.1991 | CU-T1227 | Mexico City | 0/112 | Overran on landing |
| 05.06.1992 | LZ-BTD | Varna | 0/130 | Overran on landing in heavy rain |
| 18.06.1992 | RA-85282 | Bratsk | 1+0/0 | Burned out during refueling |
| 18.06.1992 | RA-85234 | Bratsk | 0/0 | Burned out in the same incident |
| 20.07.1992 | 4L-85222 | Tbilisi | 4+24/24 | Crashed at take-off due to overloading |
| 01.08.1992 | YA-TAP | Kabul | 0/0 | Destroyed in the airport by mortar fire |
| 05.09.1992 | UR-85269 | Kiev | 0/147 | Rough landing with left gear still retracted |
| 05.12.1992 | EK-85105 | Erevan | 0/154 | Overran on landing |
| 19.01.1993 | UK-85533 | Delhi | 0/165 | Rough landing due to crew error |
| 08.02.1993 | EP-ITD | near Tehran | 2+131/131 | Mid-air collision with Iranian Air Force Su-24 |
| 22.09.1993 | 4L-85163 | Sukhumi | 108/132 | Shot down by missile |
| 23.09.1993 | 4L-85359 | Sukhumi | 0/0 | Damaged by shelling, never repaired |
| 03.01.1994 | RA-85656 | Irkutsk | 1+125/125 | Engine fire at take-off, hydraulics failed |
| 13.09.1997 | 11+02 | Namibia | 24/24 | Mid-air collision with USAF C-141 |
| 15.12.1997 | EY-85281 | Sharja | 85/86 | Landed short of runway, crew error |
| 29.08.1998 | CU-T1264 | Quito | 10+70/91 | Aborted take-off, overran and caught fire |
| 24.02.1999 | B-2622 | Ruian | 61/61 | Crashed on final approach due to technical failure |
| 04.10.2001 | RA-85693 | Black sea | 78/78 | Mid-air destruction of unknown cause |
| 12.02.2002 | EP-MBS | Khorramabad | 119/119 | Crashed on final approach |
| 24.08.2004 | RA-85556 | Millerovo | 46/46 | Exploded in mid-air by suicide bomber |
Question:
How many different brief descriptions are there for crashes with 0/161 fatalities?
Answer:
1.0