The data below is in a format known as tab-delimited values. You can open this file with any spreadsheet application and the data will be distributed into the appropriate rows and columns. 


Year	Telegraph messages sent (million)
1870	0.03
1875	0.9
1880	1
1885	1.8
1890	1.9
1895	2
1900	3.5
1905	5.2
1910	7.8
1915	10.8
1920	7.9
1925	6.3
1930	6
1935	3.4
1940	4.5
1945	6.5
1950	6.9
1955	7.3
1960	7.3
1965	7.2
1970	5.7
1975	4.6

Source: 
Statistics New Zealand
New Zealand Official Yearbook

Downloaded from Te Ara | The Encyclopedia of New Zealand
www.TeAra.govt.nz