The exact number of speakers in Greece is difficult to ascertain, with estimates ranging between 20,000 and 250,000. Jacques Bacid estimates in his 1983 book that "over 200,000 Macedonian speakers remained in Greece". Other sources put the numbers of speakers at 180,000 220,000 and 250,000, whereas Yugoslav sources vary, some putting the estimated number of "Macedonians in Greek Macedonia" at 150,000200,000 and others at 300,000. The Encyclopdia Britannica and the Readers Digest World Guide both put the figure of ethnic Macedonians in Greece at 1.8% or c.200,000 people, with the native language roughly corresponding with the figures. The UCLA also states that there are 200,000 Macedonian speakers in Greece. A 2008 article in the Greek newspaper Eleftherotypia put the estimate at 20,000.

By how many speakers do estimates vary?
A: 230000

The Cardinals' ninth game was an NFC West rivalry re-match against the Seahawks. In the first quarter the Cardinals took the early lead as RB Tim Hightower got a 2-yard TD run. The Seahawks replied with RB Marshawn Lynch getting a 1-yard TD run. The Cardinals trailed with kicker Olindo Mare getting a 41-yard field goal, but they answed back with kicker Jay Feely nailing a 23-yard field goal. The Cardinals struggled further with QB Matt Hasselbeck completing a 63-yard TD pass to WR Deon Butler. This was followed in the third quarter by a 34, 19 and 23-yard field goal from Mare. In the fourth quarter Mare got another 19-yard field goal to put the Seahawks up 29-10. The Cardinals responded with QB Derek Anderson making a 2-yard TD pass to WR Early Doucet (With a successful 2-point conversion as Anderson found WR Larry Fitzgerald), but the Seahawks put the game away with RB Justin Forsett getting a 4-yard TD run.

How many yards longer was the longest touchdown compared to the shortest?
A: 62

The Crimean Tatar's invasions of Russia began in 1507, after the death of Moscow's grand duke Ivan III, with the Crimean Khanate attacking the Russian towns of Belev and Kozelsk. Over the course of the 16th century, the outer border of the Wild Steppes was near the city of Ryazan, outside the Oka River. The main path for the invading forces to Moscow was the Muravsky Trail, running from the Crimean Isthmus of Perekop, between the basins of the Dnieper and Severskiy Donets rivers, and finally up to Tula. The Tatars would turn back only after extensive looting and kidnapping, the Tartars usually managed to penetrate 100-200 kilometers into Russian territory. Captives were subsequently sent to the Crimean city of Caffa to be sold into Slavery. As a result, the Russian population in the border regions suffered heavily. Each spring, Russia mobilized up to 65,000 soldiers for border service. The defensive lines consisted of a circuit of fortresses and cities. To protect from invasions by the Nogai Horde in the region between the Volga and Irtysh rivers, the Volga cities of Samara , Tsaritsyn , and Saratov were founded. The most damaging invasions occurred in 1517, 1521 , 1537 , 1552, 1555, 1570-72 , 1589, 1593, 1640, 1666-67 , 1671, and 1688.

How many years did the most damaging invasions occur
A:
15