… each cover the following periods: 1963–1972, 1973–1982, 1983–1992, 1993–2002, 2003–2012 and 2013–2022. The range for the top row is spread over 5 equidistant … each cover the following periods: 1963–1972, 1973–1982, 1983–1992, 1993–2002, 2003–2012 and 2013–2022. The range for the top row is spread over 5 equidistant …