Sweden competed at the 1972 Summer Olympics in Munich, West Germany. 131 competitors, 104 men and 27 women, took part in 90 events in 18 sports.
West Germany competed at the 1976 Summer Olympics in Montreal, Quebec, Canada. 290 competitors, 233 men and 57 women, took part in 163 events in 20 sports.
The Netherlands competed at the 1980 Summer Olympics in Moscow, USSR. In partial support of the American-led boycott of the 1980 Summer Olympics in protest over the Soviet Union's invasion of Afghanistan, the Dutch athletes boycotted the Opening Ceremony, and the Olympic Flag was used in place of Netherlands' national flag at medal ceremonies. 75 competitors, 57 men and 18 women, took part in 56 events in 10 sports.
West Germany competed at the 1984 Summer Olympics in Los Angeles, United States. West Germany had joined the American-led boycott of the 1980 Summer Olympics four years previously. 390 competitors, 267 men and 123 women, took part in 194 events in 25 sports.
The People's Republic of China competed at the 1984 Summer Olympics in Los Angeles, United States. It was the first appearance at the Summer Games for the country after its mostly symbolic presence at the Summer Games in 1952 during which the dispute between the Republic of China and the PRC resulted in the former withdrawing all its athletes. After 1952 and until these games, the PRC boycotted the Olympics due to the Taiwan's presence as the Republic of China. In 1984, the Republic of China competed as Chinese Taipei and the PRC competed as China. Due to the then ongoing Sino-Soviet split, China did not participate in the Soviet-led boycott. In the previous games, China participated the United States-led boycott to protest the Soviet invasion of Afghanistan in 1979, becoming the only communist country to boycott Olympics held by another communist country.
Italy competed at the 1984 Summer Olympics in Los Angeles, United States; 268 competitors, 222 men and 46 women, took part in 151 events in 23 sports.
Australia competed at the 1984 Summer Olympics in Los Angeles, United States. Australian athletes have competed in every Summer Olympic Games. 242 competitors, 169 men and 73 women, took part in 137 events in 22 sports.
The Netherlands competed at the 1988 Summer Olympics in Seoul, Republic of Korea. 147 competitors, 93 men and 54 women, took part in 86 events in 17 sports.
West Germany competed at the Olympic Games for the last time as an independent nation at the 1988 Summer Olympics in Seoul, South Korea. Following German reunification in 1990, a single German team would compete in the 1992 Summer Olympics. 347 competitors, 244 men and 103 women, took part in 194 events in 24 sports.
The People's Republic of China competed at the 1988 Summer Olympics in Seoul, South Korea. 273 competitors, 149 men and 124 women, took part in 150 events in 25 sports.
Canada competed at the 1992 Summer Olympics in Barcelona, Spain, held from 25 July to 9 August 1992. 295 competitors, 179 men and 116 women, took part in 199 events in 24 sports.
Germany competed at the 1992 Summer Olympics in Barcelona, Spain. It was the first time the European nation participated after German reunification in 1990. Previously, West Germany and East Germany had sent independent teams to the Games. 463 competitors, 300 men and 163 women, took part in 237 events in 26 sports.
South Korea competed as Korea at the 1996 Summer Olympics in Atlanta, United States. 300 competitors, 189 men and 111 women, took part in 160 events in 25 sports.
Spain competed at the 1996 Summer Olympics in Atlanta, United States. 289 competitors, 194 men and 95 women, took part in 157 events in 22 sports.
Germany competed at the 1996 Summer Olympics in Atlanta, United States. 465 competitors, 278 men and 187 women, took part in 234 events in 26 sports.
The Netherlands competed at the 1972 Summer Olympics in Munich, West Germany. 119 competitors, 90 men and 29 women, took part in 72 events in 16 sports.
Athletes from East Germany competed at the 1980 Summer Olympics in Moscow, USSR. 346 competitors, 222 men and 124 women, took part in 167 events in 17 sports.
Denmark competed at the 1996 Summer Olympics in Atlanta, United States. 119 competitors, 54 men and 65 women, took part in 66 events in 14 sports.
Margot Wilhelmina ("Wilma") Teunisje van Velsen is a former butterfly and freestyle swimmer from The Netherlands, who twice competed for her country at the Summer Olympics, starting in 1980 in Moscow, Soviet Union. There she won the bronze medal in the 4×100 m freestyle relay, alongside Conny van Bentum, Annelies Maas and Reggie de Jong. Four years later in Los Angeles, United States she was a member of the silver winning team in the same event, although she just swam in the qualifying heats to bring The Netherlands to the final. There the team was made up by Conny van Bentum, Desi Reijers, Annemarie Verstappen, and Elles Voskes.
Peter Willem Drost is a former freestyle swimmer from the Netherlands, who competed at the 1980 and 1984 Summer Olympics. His best individual result came in 1984, when he finished in seventh place (7:26.72) in the 4×200 m freestyle relay, alongside his younger brother Frank, Hans Kroes and Edsard Schlingemann. He is not related to Monique Drost, who is also a retired swimmer who competed at the 1980 Olympics.
