Help:Copyright renewals/Periodicals

Year	Renewals for	Link	OnlineBooks
1954	1926	174 337	[1]
1955	1927	165 321	[2]
1956	1928	173 335	[3]
1957	1929	171 365	[4]
1958	1930	177 387	[5]
1959	1931	177 389	[6]
1960	1932	167 363	[7]
1961	1933	167 385	[8]
1962	1934	199 451	[9]
1963	1935	195 441	[10]
1964	1936	393	[11]
1965	1937	349	[12]
1966	1938	393	[13]
1967	1939	375	[14]
1968	1940	383	[15]
1969	1941	385	[16]
1970	1942	399	[17]
1971	1943	405	[18]
1972	1944	423	[19]
1973	1945	445	[20]
1974	1946	459 509	[21]
1975	1947	n457 n505	[22]
1976	1948	n339 393	[23]
1977	1949	n433 431	[24]
1978	1950	n760 n920 1057 n2240	[25]