Index of ftp://ftp.ngdc.noaa.gov/ionosonde/catalog/mids/WP937

`WP937_1987.dat`	`2.16Mb`	`May 30 2010`	`[find mirrors]`
`WP937_1988.dat`	`6.30Mb`	`May 30 2010`	`[find mirrors]`
`WP937_1989.dat`	`4.97Mb`	`May 30 2010`	`[find mirrors]`
`WP937_1990.dat`	`5.74Mb`	`May 30 2010`	`[find mirrors]`
`WP937_1991.dat`	`6.28Mb`	`May 30 2010`	`[find mirrors]`
`WP937_1992.dat`	`6.89Mb`	`May 30 2010`	`[find mirrors]`
`WP937_1993.dat`	`4.60Mb`	`May 30 2010`	`[find mirrors]`
`WP937_1994.dat`	`6.51Mb`	`May 30 2010`	`[find mirrors]`
`WP937_1995.dat`	`6.35Mb`	`May 30 2010`	`[find mirrors]`
`WP937_1996.dat`	`4.67Mb`	`May 30 2010`	`[find mirrors]`
`WP937_1997.dat`	`1.80Mb`	`May 30 2010`	`[find mirrors]`
`WP937_1998.dat`	`9.28Mb`	`May 30 2010`	`[find mirrors]`
`WP937_1999.dat`	`21.38Mb`	`May 30 2010`	`[find mirrors]`
`WP937_2000.dat`	`9.30Mb`	`May 30 2010`	`[find mirrors]`
`WP937_2001.dat`	`10.21Mb`	`May 30 2010`	`[find mirrors]`
`WP937_2002.dat`	`26.83Mb`	`May 30 2010`	`[find mirrors]`
`WP937_2003.dat`	`22.06Mb`	`May 30 2010`	`[find mirrors]`
`WP937_2004.dat`	`11.40Mb`	`May 30 2010`	`[find mirrors]`
`WP937_2005.dat`	`16.00Mb`	`May 30 2010`	`[find mirrors]`
`WP937_2006.dat`	`19.46Mb`	`May 30 2010`	`[find mirrors]`
`WP937_2007.dat`	`31.57Mb`	`May 30 2010`	`[find mirrors]`
`WP937_2008.dat`	`617.66Kb`	`May 30 2010`	`[find mirrors]`
`WP937_2009.dat`	`12.48Mb`	`May 30 2010`	`[find mirrors]`
`WP937_2010.dat`	`11.11Mb`	`June 3 2010`	`[find mirrors]`