The standard spare tire size, for a 1999 Toyota Camry, is 135 R55 15. The spare tire size is smaller than the standard tire size.
P195/70R14 would be the stock tire size for the front, rear and spare tire.
I think it is 14 mm.
The 2008 Toyota Camry has a 2.4 L base engine size.
The 2006 Toyota Camry has a 2.4 L base engine size.
The 2012 Toyota Camry has a 2.5 L base engine size.
The 2004 Toyota Camry has a 2.4 L base engine size.
The 2010 Toyota Camry has a 2.5 L base engine size.
The 2007 Toyota Camry has a 2.4 L base engine size.
The 2003 Toyota Camry has a 2.4 L base engine size.
The 2014 Toyota Camry has a 2.5 L base engine size.
The 2002 Toyota Camry has a 2.4 L base engine size.
The 2009 Toyota Camry has a 2.4 L base engine size.